Franklin is a city in Franklin County, Idaho, home to about 1,034 people across 1.3 square miles. Its ZIP code is 83237.
Homes sold for a median of $184 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Franklin. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Salt Lake City International Airport (SLC)86 miles away |
|---|---|
| Closer regional airport | Ogden Hinckley Airport (OGD)59 miles away |
| Nearest city of 250,000+ | Denver, CO393 miles away |
| Nearest city of 1 million+ | Phoenix, AZ584 miles away |
Straight-line distances from the center of Franklin; 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.
Franklin had 1,025 residents in the 2020 census, up 60% since 2000.
It’s the 98th largest of 232 towns in Idaho by population.
Franklin County grew from 8,650 residents in 1920 to 14,194 in 2020.
Franklin County, 1920–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 15°F. About 17.3 inches of rain and melted snow fall in a typical year, with about 52 inches of snow.
Source: NOAA 1991–2020 climate normals, Preston, ID weather station (7 miles away).
2,839 jobs at 372 businesses in Franklin County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Franklin.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 2 |
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.
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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.