Browse / United States / Montana / Sidney
Sidney
Montanacity
Sidney
Total population
6,171
Median home value
$236,900
Bachelor's+
Median income
$62,538
Founded
1911
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Facts from Wikidata (CC0).
Overview
Sidney is a city in and the county seat of Richland County, Montana, United States, less than 10 mi (16 km) west of the North Dakota border. The population was 6,346 at the 2020 census, and was estimated to be 6,031 in 2024. The city lies along the Yellowstone River. Sidney is approximately midway between Glendive, Montana and Williston, North Dakota.
Read more on WikipediaHistory & geography
History
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 was originally part of Dawson County, but became the county seat of Richland County at its inception in 1914. Agriculture became an important part of the region after the Lower Yellowstone Irrigation Project was completed in 1909. A dam was built on the river south of Glendive, which diverted water from the river into a main canal, which runs north–south, parallel to the Yellowstone, irrigating land from Glendive north up to Fairview, where it drains into the Missouri River. This project irrigates and serves water to 450 farms, according to the manager of the Lower Yellowstone Irrigation Districts. During the Great Depression, Montana artist J. K. Ralston painted a Federal Arts Project mural at the Richland County Courthouse in Sidney. The town received a boost in 1924 when the Holly Sugar Corporation opened up a sugar refinery in Sidney to process locally grown sugar beets.
Geography
Sidney is located in the northeastern part of the state. According to the United States Census Bureau, the city has a total area of , of which is land and (0.57%) is water. |source 2 = National Weather Service }}
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
Current forecast
Forecast for Sidney, MT from NOAA NWS API.
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- American RobinTurdus migratorius Linnaeus, 1766 · Aves221
- Mourning DoveZenaida macroura (Linnaeus, 1758) · Aves205
- Yellow WarblerSetophaga petechia (Linnaeus, 1766) · Aves142
- Ring-necked PheasantPhasianus colchicus Linnaeus, 1758 · Aves126
- Northern FlickerColaptes auratus (Linnaeus, 1758) · Aves113
- House WrenTroglodytes aedon Vieillot, 1809 · Aves111
- Western MeadowlarkSturnella neglecta Audubon, 1844 · Aves107
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves98
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Largest nearby schools
- Sidney High SchoolHigh · Sidney · 387 students · 14.3:1 ratio
- West Side ElementaryElementary · Sidney · 321 students · 15.3:1 ratio
- Sidney Middle SchoolMiddle · Sidney · 284 students · 14.2:1 ratio
- Central ElementaryElementary · Sidney · 251 students · 14.8:1 ratio
- Rau SchoolElementary · Sidney · 69 students · 9.9:1 ratio
- Brorson SchoolElementary · Sidney · 4 students · 4:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Most recent
- M 2.6 — 2014-05-0612 km NNW of Knife River, Montana
- M 3.8 — 2014-02-2523 km N of Brockton, Montana
- M 3.3 — 2012-09-2822 km ESE of Williston, North Dakota
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here


People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.
Nearby places in Montana
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Sidney



Search results from Open Library.
Recent natural events nearby
- Wildfire Ayers Pond, Prairie, MontanaWildfires · 2026-09-03 · 80 mi
- Incident Complex Rattlesnake Complex, Prairie, MontanaWildfires · 2026-09-04 · 86 mi
- Wildfire Snow, Custer, MontanaWildfires · 2026-09-02 · 98 mi
- Wildfire Twin Butte Ck, Corson, South DakotaWildfires · 2026-07-27 · 189 mi
- Wildfire Sarpy, Big Horn, MontanaWildfires · 2026-08-17 · 209 mi
- Wildfire Harris, Rosebud, MontanaWildfires · 2026-08-09 · 210 mi
- Wildfire Fairpoint, Meade, South DakotaWildfires · 2026-07-27 · 214 mi
- Wildfire Davis Coulee, Big Horn, MontanaWildfires · 2026-09-14 · 223 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species









Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • USGS Earthquake Catalog (global feed)
- • NCES via Urban Institute Education Data Portal
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET