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Phone Numbers with the (406) 433- Prefix

Area code:406 area code
Usage:Landline Numbers
Carrier:Mid-rivers Telephone Cooperative, Inc.
Timezone:Mountain
Current time:12:41pm
All Cities Served:Sidney, MT
All Counties Served:Richland County
All Zip Codes Served:59270
Map of Sidney, MT

Most Searched Phone Numbers

Telephone Search Date Search Location(s)
406-433-3878 Jun 2018 Colombia
406-433-3133 Jan 2018 India
406-433-4035 Feb 2018 Ohio
406-433-4566 May 2017 Utah
406-433-0250 Jun 2017 Oregon
406-433-6559 Sep 2016 United States
406-433-8626 Jun 2016 Montana
406-433-8290 Jul 2016 Wyoming
406-433-8614 Apr 2016 Montana
406-433-9340 Oct 2015 California
406-433-7708 Nov 2015 Washington
406-433-9989 May 2015 Montana
406-433-8584 Mar 2015 New York
406-433-1020 Jul 2015 Florida
Telephone Search Date Search Location(s)
406-433-7768 Feb 2015 India
406-433-8204 Sep 2014
406-433-8748 May 2014
406-433-2706 Mar 2014 Canada
406-433-2374 Jun 2014 New Jersey
406-433-7799 Dec 2014 Philippines
406-433-0395 Jun 2013 China
406-433-3760 Jun 2013 China
406-433-9408 Oct 2012 Texas
406-433-3669 Feb 2012 Minnesota
406-433-1740 Oct 2011 Arizona
406-433-7082 Feb 2011 United States
406-433-8606 Dec 2010 Montana

Business and Government (406) 433-XXXX Numbers

Telephone Name
406-433-1000 Lunderby Livestock
406-433-1005 Chad's Furniture
406-433-1007 Niehenke Welding Inc
406-433-1010 Security Abstract Company
406-433-1063 Prairie Pipeline
406-433-1068 Matthew's Catholic Church St
406-433-1075 Dairy Queen
406-433-1107 Sidney Greenhouse
406-433-1112 Alliance Church Faith
406-433-1122 Fire - Sidney
406-433-1134 Shades Of Grey Tattooing
406-433-1203 County-Sidney Richland
406-433-1204 Service Workforce Center Job
406-433-1206 County-Sidney Richland
406-433-1215 Venaz Nail Studio
406-433-1219 Sidney Tax Service
406-433-1220 Yellowstone Valley Concrete & Construction
406-433-1240 Nfb Excavation Inc
406-433-1301 Pacific Steel & Recycling
406-433-1306 Lower Yellowstone Irrigation Project
406-433-1308 Pacific Steel & Recycling
406-433-1326 New Attitudes By Shawna
406-433-1377 Farmers Insurance Group
406-433-1401 Cenex-Farmer's Elevator
406-433-1402 Johnson Hardware & Furniture
406-433-1405 Sidney Cleaners & Laundry
406-433-1411 Seitz Insurance
406-433-1413 High Plains Vet Clinic
406-433-1414 Lunderby Livestock
406-433-1417 High Plains Vet Clinic
406-433-1430 Cook Janet
406-433-1444 A & L Transportation Inc
406-433-1452 Jb Sprinklers
406-433-1498 Services Plus Llc
406-433-1520 Park Plaza Motel
406-433-1556 Badger Daylighting Mt/nd
406-433-1572 Sidney Red-E Mix-Inc
406-433-1577 Rau Designs
406-433-1579 Rau Designs
406-433-1590 M D Hose & Fittings
406-433-1607 Lyle R Panasuk Attorney At Law
406-433-1608 County-Sidney Richland
406-433-1616 Ribbon & Rail
406-433-1618 Ribbon & Rail
406-433-1637 Newfield Production Co
406-433-1640 Maltese Tami Cpa Cfp
406-433-1659 Advanced Communications
406-433-1661 Club Tavern
406-433-1664 Juli-Ana's Gifts
406-433-1682 Lyle R Panasuk Attorney At Law
406-433-1696 Magic Mirror The
406-433-1706 County-Sidney Richland
406-433-1707 County-Sidney Richland
406-433-1708 County-Sidney Richland
406-433-1709 County-Sidney Richland
406-433-1711 Tibbits Machine Service
406-433-1714 M & M Cafe
406-433-1733 Old Dominion Freight Line Inc
406-433-1770 Thrivent Financial For Lutherans
406-433-1810 Eagle Country Ford Inc
406-433-1818 Block H & R
406-433-1839 Sunny's Fiesta Cafe
406-433-1894 Sidney Country Club
406-433-1902 Reynolds Warehouse Grocery
406-433-1903 Health & Human Services Public
406-433-1916 Chamber Of Commerce
406-433-1917 Lva Richland County
406-433-1935 R & R Transport Of Montana
406-433-1971 Pizza House
406-433-1978 County Housing Richland
406-433-1983 McDonald's Restaurant
406-433-2012 Pro-Build
406-433-2015 Health & Human Services Public
406-433-2018 Sidney Electric
406-433-2020 States Department Of Agriculture United
406-433-2034 Pro-Build
406-433-2050 Lutheran Church-Lcms Trinity
406-433-2092 Chms
406-433-2103 Department Of Agriculture
406-433-2106 County Public Works Shop Richland
406-433-2207 Health & Human Services Public
406-433-2208 Eastern Agricultural Research Center Msu
406-433-2209 Lutheran Brethren Church Sidney
406-433-2210 Department Police
406-433-2220 County-Sidney Richland
406-433-2226 Amunrud's Rv Inc
406-433-2247 Golden Eagle Trucking Inc
406-433-2248 Golden Eagle Trucking Inc
406-433-2250 Dresser Oil Tools & Supply
406-433-2251 Dresser Oil Tools & Supply
406-433-2255 North Star Auto Body & Glass
406-433-2263 Candy Bouquet
406-433-2274 Cash Montana
406-433-2277 1st Choice Collision Center
406-433-2282 Health & Human Services Public
406-433-2295 Taco Johns
406-433-2305 Reynolds Warehouse Grocery
406-433-2312 Action Auto
406-433-2321 Wells Fargo Bank
406-433-2330 Public Schools Sidney
406-433-2378 Justice
406-433-2400 Screen Play
406-433-2402 Thogersen Oil Co
406-433-2403 Sidney Herald
406-433-2406 Elk's Bpo Lodge
406-433-2407 County-Sidney Richland
406-433-2411 Beth's Hair Clinic
406-433-2415 Richland Airport Sidney
406-433-2429 Chaznline Construction Inc
406-433-2431 M & S Builders
406-433-2476 Signs Of Sidney
406-433-2504 Cm Built Doors
406-433-2505 County-Sidney Richland
406-433-2508 Sweley Oil Inc
406-433-2510 Matthew's Catholic Church St
406-433-2530 Public Schools Sidney
406-433-2550 Of God Church Assembly
406-433-2602 Path
406-433-2630 Kalberer's Heating Inc
406-433-2639 Body Bliss Massage
406-433-2648 G & A Enterprises Inc
406-433-2654 Congregational Church Ebenezer
406-433-2677 Boss Office & Computer Products
406-433-2683 Conocophillips Company
406-433-2695 Ok Lanes
406-433-2702 John Stockhill Jewelers
406-433-2714 Trendz Salon
406-433-2729 Gem City Motors
Telephone Name
406-433-2737 Pacific Tank & Pipeline
406-433-2738 Pacific Tank & Pipeline
406-433-2782 Big Sky Veterinary Center
406-433-2801 County Fair & Rodeo Richland
406-433-2809 County-Sidney Richland
406-433-2815 County-Sidney Richland
406-433-2850 County-Sidney Richland
406-433-2862 Sidney Liquor Store
406-433-2886 Yellowstone Auto Repair & Fabrication
406-433-2906 Sunrise Music Center
406-433-2910 East-Mont Enterprises
406-433-2917 East-Mont Enterprises
406-433-2919 County-Sidney Richland
406-433-2948 Sidney Body Shop
406-433-2965 Richland Leather (richland Yellowstone)
406-433-2987 Jones Construction Services Inc
406-433-2988 Aware Inc
406-433-3006 Continental Resources Inc
406-433-3010 Farmers Union Insurance
406-433-3011 Court Youth
406-433-3013 Pro Tec Storage
406-433-3014 Nortana Grain Co
406-433-3017 Moose Lodge
406-433-3018 Nortana Grain Co
406-433-3025 All-West Creekside
406-433-3026 B & G Production Service Inc
406-433-3027 All-West Creekside
406-433-3033 Mustang Run Gallery
406-433-3055 Video Hot Spot
406-433-3110 United Methodist Church Lonsdale
406-433-3120 Gem City Motors
406-433-3131 Sidney Tax Service
406-433-3151 United Methodist Church Lonsdale
406-433-3180 Home Care Services
406-433-3212 1st Bank
406-433-3232 Hello Gorgeous
406-433-3245 Regal Eagle Bar & Casino
406-433-3250 Of Jesus Christ Church
406-433-3278 Thiel Brothers Roofing Inc
406-433-3301 Sidney Sugars Incorporated
406-433-3303 Sidney Sugars Incorporated
406-433-3306 The Roundup
406-433-3309 Sidney Sugars Incorporated
406-433-3322 Busch Agricultural Resources Inc
406-433-3349 Sm Energy
406-433-3350 Lutheran Church Pella
406-433-3355 Carpenter's Storehaus Inc
406-433-3376 Trista Mueller Graphic Design
406-433-3400 Farm & Home Supply
406-433-3403 Blue Rock Products Co
406-433-3410 M3 Meats
406-433-3414 Fisher Orthodontics
406-433-3456 Of Christ Church
406-433-3500 Mondak Heritage Center Art Gallery
406-433-3505 County-Sidney Richland
406-433-3518 Carter Phillip Atty
406-433-3600 Edward Jones Investments
406-433-3655 J & L Fencing & Pitliner Inc
406-433-3664 Bear Paw Energy Inc
406-433-3686 Picture Perfect Photography
406-433-3701 County-Sidney Richland
406-433-3706 Baptist Church Bible
406-433-3707 Congregational Church People's
406-433-3720 Crestwood Inn
406-433-3721 Crestwood Inn
406-433-3731 County-Sidney Richland
406-433-3734 Blue Rock Distributing Co
406-433-3735 Central Water Conditioning
406-433-3746 Erin's Nails
406-433-3858 Firestone-Western Tire
406-433-3869 Dale's Plumbing & Repair
406-433-3894 Avis Rent A Car
406-433-3920 Farm Credit Services
406-433-3925 Farm Credit Services
406-433-4004 Baptist Church-Sbc Fellowship
406-433-4041 Miller's Corner
406-433-4044 Path
406-433-4050 Public Schools Sidney
406-433-4080 Public Schools Sidney
406-433-4097 Alcohol & Drug Program
406-433-4100 Upper Missouri G & T
406-433-4113 J & T Bock Custom Hay Grinding
406-433-4125 Kringen Construction
406-433-4126 Western Complex
406-433-4127 Kringen Construction
406-433-4160 Sunworld Travel
406-433-4232 Nutt-N Better Ice Cream Shop
406-433-4247 Hair Designs
406-433-4346 Parka Inc
406-433-4354 South 40 Restaurant
406-433-4357 Parka Inc
406-433-4370 Electricland/radio Shack
406-433-4375 Elk River Printing
406-433-4376 Cross Petroleum Service
406-433-4380 Elk River Printing
406-433-4386 Party Central
406-433-4416 Farm Bureau Financial Services
406-433-4417 Farm Bureau Financial Services
406-433-4422 Fink Dental Center
406-433-4433 Hydratek Inc
406-433-4445 Jones Nick Real Estate
406-433-4508 Planet Hair
406-433-4510 Smith Lange & Halley
406-433-4518 Smith Lange & Halley
406-433-4520 Lone Tree Motor Inn
406-433-4527 Lander Painting Inc
406-433-4530 Hair Plus
406-433-4554 Kentucky Fried Chicken
406-433-4575 Nicholson Insurance
406-433-4583 Mark Anthony & Company
406-433-4600 Associated Fencing
406-433-4635 Mental Health Center
406-433-4636 Winner's Pub Sports Bar & Casino
406-433-4642 County-Sidney Richland
406-433-4644 Horizon Properties Inc
406-433-4650 Depot Pizza & Casino
406-433-4681 Crestwood Inn
406-433-4709 Triangle Nite Club
406-433-4731 Big B Muffler
406-433-4757 Yellowstone Chiropractic
406-433-4868 Wild Outdoorsman
406-433-4967 Action For Eastern Montana
406-433-4998 South 40 Takeout & Casino
406-433-4999 South 40 Restaurant
406-433-5013 H & R Block
406-433-5024 Department Of Agriculture
406-433-5061 Corrections Probation & Parole
406-433-5072 Lutheran Brethren Church Sidney
Telephone Name
406-433-5090 Keyz-Kyyz-Kthc
406-433-5101 Geo Drilling Fluids Inc
406-433-5175 Gulliver's
406-433-5181 Reynolds Warehouse Grocery
406-433-5229 Richland Youth Hockey
406-433-5277 Kleen Auto Detailing
406-433-5323 Green Leaf Health Spa
406-433-5373 Finnicum's Furniture
406-433-5380 Jerry Z Repairs
406-433-5400 Montana Turf 'n Wheels
406-433-5423 Sidney Country Club
406-433-5429 Kgcx - Eagle 93
406-433-5430 Kgcx - Eagle 93
406-433-5464 Averett Terry (cpa)
406-433-5501 Public Schools Sidney
406-433-5511 Netzer Law Office
406-433-5522 Transystems
406-433-5586 Quilted Treasures
406-433-5617 Interstate Engineering Inc
406-433-5635 Collins Joel Investments
406-433-5688 A Little Off The Top
406-433-5720 Northern States Fishing Tools
406-433-5770 East Main Mini Storage Llc
406-433-5825 Lucky Buckle
406-433-5826 Lucky Buckle
406-433-5939 District Court Judges
406-433-6000 Camille Clausen Photography
406-433-6010 Jim's Catering Co
406-433-6016 Brenner Averett & Co
406-433-6042 Maltese Peter O Atty
406-433-6061 Hi-Line Home Programs Inc
406-433-6069 Ferrellgas
406-433-6143 Thrivent Financial For Lutherans
406-433-6273 Of Jesus Christ Church
406-433-6320 Plains Marketing
406-433-6363 Video Take Out
406-433-6370 Public Schools Sidney
406-433-6371 Macgrady Cody Trucking
406-433-6400 Richland Motor Inn
406-433-6406 Norby Repair
406-433-6414 Lilli Pad
406-433-6430 Napa Auto Parts
406-433-6431 Napa Auto Parts
406-433-6464 Someplace Mini Golf
406-433-6607 Real Trucking Inc
406-433-6635 Mondak Motorsports Inc
406-433-6665 Service Workforce Center Job
406-433-6712 All Season Motor Sports
406-433-6725 Victim Witness Advocate
406-433-6752 Ameriprise Financial - Mike Mohl
406-433-6754 S/l Services Llc
406-433-6755 Sonda's Solutions
406-433-6757 Sonda's Solutions
406-433-6782 Cable & Communications Corporation
406-433-6834 County-Sidney Richland
406-433-6885 County-Sidney Richland
406-433-6886 County-Sidney Richland
406-433-6895 Health & Human Services Public
406-433-6946 Retired Senior Volunteer Program - Rsvp
406-433-7006 Sidney Sugars Incorporated
406-433-7033 Paws Point
406-433-7035 Champion Technologies Inc
406-433-7047 Dan Miller Trucking
406-433-7100 Becker Sales
406-433-7163 Jackson Constance F Cpa
406-433-7174 Cattle-Ac
406-433-7220 Elliott Oil Corp
406-433-7222 Club Royale Casino
406-433-7247 Dan Miller Trucking
406-433-7262 Kc Transport & Sand
406-433-7263 Kc Transport & Sand
406-433-7264 Kc Transporation Shop
406-433-7308 Oakland Construction Inc
406-433-7321 Electricland/radio Shack
406-433-7336 Eastern Agricultural Research Center Msu
406-433-7338 Jock Stop
406-433-7421 Violence Richland County Domestic
406-433-7433 County-Sidney Richland
406-433-7453 Service Workforce Center Job
406-433-7460 Sidney Country Club
406-433-7479 Of The Valley Lutheran Church Shepherd
406-433-7586 Doorbust'n Portable & Septic Service Llc
406-433-7596 Doorbust'n Portable & Septic Service Llc
406-433-7605 Mondak Auto Sales
406-433-7640 Central Hair'em
406-433-7645 Healthy Smiles Dental Group
406-433-7650 2 Blondes
406-433-7676 Trading Post
406-433-7685 Macgrady & Son Trucking
406-433-7700 Armstrong Lee E Atty
406-433-7720 Cresap & Armstrong Pc Law Firm
406-433-7762 Stepping Stones Massage
406-433-7767 Sidney Woodworker & Lumber
406-433-7772 Sunrise Pregnancy Resource Center
406-433-7777 Edward Jones Investments
406-433-7788 Edward Jones
406-433-7800 Exdivio Solutions Inc
406-433-7802 Sidney Herald
406-433-7822 Sidney Cardlock
406-433-7827 Footers
406-433-7848 Bakken Oil Llc
406-433-8090 Epic Integrated Services
406-433-8115 County Housing Richland
406-433-8181 Investment Centers Of America
406-433-8336 Farm & Home Supply
406-433-8338 Sidney Rental
406-433-8340 Sidney Rental
406-433-8346 Reidle Logistics
406-433-8388 Bean Bag The
406-433-8473 Pro Tire
406-433-8561 Yellowstone Valley Railroad
406-433-8600 Stockman Bank
406-433-8624 Stockman Bank
406-433-8724 Speedy Heavy Hauling
406-433-8855 Sem Stream
406-433-9047 County-Sidney Richland
406-433-9188 Lower Yellowstone Irrigation Project
406-433-9319 Sidney Sugars Incorporated
406-433-9650 Uintah Engineering & Land Surveying
406-433-9653 Uintah Engineering & Land Surveying
406-433-9666 Your Place Mini Golf
406-433-9770 Savage Law Firm
406-433-9771 Savage Law Firm
406-433-9936 Triangle Nite Club
406-433-9949 Sadie's
406-433-9982 Vfw Club
406-433-9984 Cheerio Lounge

Residential (406) 433-XXXX Numbers

Telephone Name
406-433-1117 City Of Sidney
406-433-1122 City Of Sidney
406-433-1171 Richard & Virginia Wolfe
406-433-1455 Lee & Renee Troudt
406-433-1484 Reyes & Audrey Munoz
406-433-1576 City Of Sidney
406-433-1729 A. Clifford & Darlene Berg
406-433-1847 Jerald Bergman
406-433-1917 City Of Sidney
406-433-1947 City Of Sidney
406-433-1953 Russell & Irene Johnson
406-433-2007 Diana Dige
406-433-2010 Wade & Penny Roberts
406-433-2013 Doug & Kris Hettich
406-433-2025 Frank Cundiff
406-433-2026 Audrey Sampson
406-433-2028 Jeanetta Cooley
406-433-2031 John & Dorothy Frison
406-433-2044 Edward & Antonette Eberling
406-433-2048 Phillip & Patty Petrik
406-433-2066 Steve & Gloria Harris
406-433-2070 Arnie Haugen
406-433-2079 Bill Linder
406-433-2082 Gary & Deanne Rauschendorfer
406-433-2085 L. Kemmis
406-433-2088 Steve & Regina Schwindt
406-433-2089 Lowell & Joanne Larson
406-433-2090 Leroy Pfau
406-433-2091 Coon & Martha Simard
406-433-2098 Ron & Gin Prevost
406-433-2114 Diane Ford
406-433-2115 Todd Morasko
406-433-2127 Darrell & Doris Goebel
406-433-2133 John & Anita Pigg
406-433-2134 Dwight Houchen
406-433-2139 Lawrence Volk
406-433-2141 Seasons Rv & Tr Park Four
406-433-2142 D. R Eggum
406-433-2145 Leighton Ziegler
406-433-2171 H. E Halvorsen
406-433-2173 Mark & Kathy Iversen
406-433-2179 Gary & Nikki Bahr
406-433-2185 Joe & Maryann Steinbeisser
406-433-2187 Don Steinbeisser
406-433-2192 D. Robert & Kathie L. Smith
406-433-2195 Tom & Carla Verhasselt
Telephone Name
406-433-2196 Donald Steinley
406-433-2197 Helen Johnson
406-433-2201 Jim & Becky Schwartz
406-433-2210 City Of Sidney
406-433-2215 Jim & Linda Tibbits
406-433-2223 Ken Kling
406-433-2227 Kenny & Shirley Dean Scheetz
406-433-2237 Jimmie D. & Mae E. Rittal
406-433-2239 Roger Thomas
406-433-2245 J. R Bail
406-433-2249 Jamison & Lisa Fox
406-433-2266 Rocky & Laurie Norby
406-433-2267 K. Schledewitz
406-433-2270 Clifford L. Barnhart
406-433-2271 Louis & Delores Frison
406-433-2278 Mary Lou Brese
406-433-2289 Dean & Claudine Youngquist
406-433-2291 Lloyd & Marietta Keller
406-433-2292 Richard Riedmann
406-433-2296 R. Skaar
406-433-2310 Richard E. Kunda
406-433-2338 Leroy Amundson
406-433-2340 Darvin Ruggles
406-433-2345 Dennis & Gail Walla
406-433-2350 Jerome & Rose Thilmony
406-433-2359 Rene France
406-433-2365 Steve & Gloria Yockim
406-433-2367 Louie A. Kuylen
406-433-2372 Rockie & Pam Taylor
406-433-2373 Judith K. Fladmo
406-433-2375 Verda Pederson
406-433-2379 Robert Hammer
406-433-2381 Dorothy Fink
406-433-2389 D. Prevost
406-433-2391 Richard & Renee Goss
406-433-2395 Andy & Sharon Olson
406-433-2401 Harold Fink
406-433-2504 Chad & Jodi Mueller
406-433-2511 Herbert Schmierer
406-433-2514 Gary King
406-433-2515 James L. Pritzkau
406-433-2516 Dennis & Deborah Buxbaum
406-433-2529 Cynthia Sheehan
406-433-2536 Tom & Marilynn Lorenz
406-433-2545 Conley & Shirley Cayer
406-433-2547 Harold & Margaret Sorensen
Telephone Name
406-433-2551 Frank Cundiff
406-433-2563 K. & D. Fairbairn
406-433-2577 Irene Lorenz
406-433-2579 Ralph J. & Donna M. Brown
406-433-2582 Dorothy Gall
406-433-2585 Bob & Carol Lee
406-433-2586 Bill & Joyce Wilkinson
406-433-2589 Steve & Penny Brown
406-433-2595 A. Schields
406-433-2598 Louise Iversen
406-433-2599 Vera Dishon
406-433-2600 R. C Macgrady
406-433-2719 T. Linder
406-433-2809 City Of Sidney
406-433-2914 Dan & Bobbi Jo Lorenz
406-433-2919 To Report Fire-
406-433-3008 Gymnastics Club Sidney
406-433-3028 G. J Buxbaum
406-433-3030 Johnson & Co Koch
406-433-3151 Douglas Gene Erickson
406-433-3333 Shelly Hutton
406-433-3339 Victor & Vivian Blake
406-433-3362 Ramona Jimison
406-433-3478 Chuck & Marleen Lowman
406-433-4395 Terri Summers
406-433-4556 Care Hair
406-433-4642 City Of Sidney
406-433-4757 Dr Ryan Laqua
406-433-5072 Matt & Serenity Richard
406-433-5521 R. Nichols
406-433-6063 Mike & Lynn Daly
406-433-6299 Army Salvation
406-433-6534 Scott & Gloria Ramus
406-433-6622 Greg & Ericka Snow
406-433-6763 & Girls Club Of Richland County Boys
406-433-7260 Bob & Janae Finnicum
406-433-7607 Bob Gilbert
406-433-7738 City Of Sidney
406-433-7773 Church Carpenter's
406-433-8077 Memorial Senior Citizen Center Peterson
406-433-8101 Orin Council
406-433-8142 County Food Bank Richland
406-433-8155 Steve & Shanna Lunderby
406-433-8866 Robert Severson
406-433-9917 Mel & Cindy Hoffman

The numbers listed above are from Sidney, MT, Crane, MT, Baker, MT, Glendive, MT, Roundup, MT, Sidney, ND and Miles City, MT.

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Sidney, MT

Sidney is a city in and the county seat of Richland County, Montana, United States, less than 10 mi (15.5 km) away from the North Dakota border. The population was 4,774 at the 2000 census. The city lies along the Yellowstone River and is in proximity to the badlands of the Dakotas. Sidney is approximately midway between Glendive and Williston, North Dakota.

Settlers began arriving in the area in the 1870s, and a post office was established in 1888. Six year old Sidney Walters and his parents were staying with Hiram Otis, the local justice of the peace, and Otis decided that Sidney was a good name for the town. The following year, Montana became a state and Sidney was incorporated in 1911.

Sidney, MT description from Wikipedia