St. Maries is a city in Benewah County, Idaho, home to about 2,915 people across 1.2 square miles. Its ZIP code is 83861.
Homes sold for a median of $237 per square foot in the three months ending August 2026, a balanced market.
Mostly St. Maries; also Parkline
Each card is that ZIP code’s whole market, including any part outside St. Maries. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up St. Maries’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Spokane International Airport (GEG)50 miles away |
|---|---|
| Nearest city of 250,000+ | Seattle, WA271 miles away |
Straight-line distances from the center of St. Maries; 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.
St. Maries had 2,357 residents in the 2020 census, down 11% since 2000.
It’s the 57th largest of 232 towns in Idaho by population.
Benewah County grew from 6,997 residents in 1920 to 9,530 in 2020.
Benewah County, 1920–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 24°F. About 31 inches of rain and melted snow fall in a typical year, with about 56 inches of snow.
Source: NOAA 1991–2020 climate normals, Saint Maries, ID weather station (about a mile away).
2,172 jobs at 275 businesses in Benewah County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
53 doctors and other health care providers list an office in St. Maries.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 9 |
| Dentists | 4 |
| Nurse practitioners and physician assistants | 8 |
| Mental health providers | 10 |
| Physical and occupational therapists | 12 |
| Chiropractors | 1 |
| Pharmacies | 1 |
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.
Grocery stores
Libraries
Counts are within about 1 mile 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.
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 St Maries Joint District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Heyburn Elementary SchoolSt Maries | Pre-K–5 | 339 | Public | 1.3 mi |
| St Maries Middle SchoolSt Maries | 6–8 | 189 | Public | 1.2 mi |
| St Maries Community Education AlternativeSt Maries | 9–12 | — | Alternative Education | 2.1 mi |
| St Maries High SchoolSt Maries | 9–12 | 282 | Public | 2.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Parkline.
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.