Firth is a city in Bingham County, Idaho, home to about 429 people across 0.6 square miles. It has no ZIP code of its own: it’s part of 83236.
Homes sold for a median of $189 per square foot in the three months ending August 2026, a balanced market.
Part is in Firth, part in Basalt
Each card is that ZIP code’s whole market, including any part outside Firth. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Firth’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Salt Lake City International Airport (SLC)174 miles away |
|---|---|
| Closer regional airport | Idaho Falls Regional Airport (IDA)15 miles away |
| Nearest city of 250,000+ | Denver, CO449 miles away |
| Nearest city of 1 million+ | Phoenix, AZ672 miles away |
Straight-line distances from the center of Firth; 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.
Firth had 517 residents in the 2020 census, up 27% since 2000.
It’s the 154th largest of 232 towns in Idaho by population.
Bingham County grew from 10,447 residents in 1900 to 47,992 in 2020.
Bingham County, 1900–2020
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 17°F. About 12.1 inches of rain and melted snow fall in a typical year, with about 15 inches of snow.
Source: NOAA 1991–2020 climate normals, Blackfoot Fire Dept, ID weather station (12 miles away).
11,325 jobs at 1,020 businesses in Bingham County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
5 doctors and other health care providers list an office in Firth.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 4 |
|---|---|
| Physical and occupational therapists | 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
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.
Public schools here are run by Firth District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| A W Johnson Elementary SchoolFirth | Pre-K–4 | 256 | Public | 0.9 mi |
| Firth Middle SchoolFirth | 5–8 | 247 | Public | 1.6 mi |
| Firth High SchoolFirth | 9–12 | 305 | Public | 1.5 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 Basalt.
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.