Sidney is a city in Richland County, Montana, home to about 6,171 people across 3.3 square miles. Its ZIP code is 59270.
Homes sold for a median of $133 per square foot in the three months ending August 2026, a balanced market.
Each card is that ZIP code’s whole market, including any part outside Sidney. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sidney’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Sidney well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Denver International Airport (DEN)543 miles away |
|---|---|
| Closer regional airport | Sidney - Richland Regional Airport (SDY)2 miles away |
| Nearest city of 250,000+ | Denver, CO550 miles away |
| Nearest city of 1 million+ | Chicago, IL904 miles away |
Straight-line distances from the center of Sidney; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Sidney had 6,346 residents in the 2020 census, up 33% since 2000.
It’s the 19th largest of 475 towns in Montana by population.
Richland County grew from 8,989 residents in 1920 to 11,491 in 2020.
Richland County, 1920–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 7°F. About 15.7 inches of rain and melted snow fall in a typical year, with about 30 inches of snow.
Source: NOAA 1991–2020 climate normals, Sidney, MT weather station (about a mile away).
4,321 jobs at 498 businesses in Richland County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
84 doctors and other health care providers list an office in Sidney.
Nearest hospitals
Providers with an office here
| Primary care doctors | 10 |
|---|---|
| Specialist doctors | 22 |
| Dentists | 3 |
| Nurse practitioners and physician assistants | 19 |
| Mental health providers | 19 |
| Physical and occupational therapists | 5 |
| Optometrists | 3 |
| Chiropractors | 3 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (9 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1911.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Brorson Elem, Rau Elem, Sidney Elem and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Brorson SchoolSidney | Pre-K–6 | 5 | Public | 7.6 mi |
| Rau SchoolSidney | Pre-K–6 | 70 | Public | 3.4 mi |
| West Side ElementarySidney | Pre-K–2 | 288 | Public | 0.4 mi |
| Central ElementarySidney | 3–5 | 272 | Public | 0.4 mi |
| Sidney Middle SchoolSidney | 6–8 | 319 | Public | 0.2 mi |
| Sidney High SchoolSidney | 9–12 | 355 | Public | 0.6 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Liberty Christian SchoolSidney | 4–11 | 10 | Baptist | 0.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Sidney? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.