Ucon is a city in Bonneville County, Idaho, home to about 1,606 people across 0.8 square miles. Its ZIP code is 83454, and parts of 83401 are in Ucon too.
Homes sold for a median of $171 per square foot in the three months ending August 2026, a seller’s market.
All in Ucon
Mostly Idaho Falls; part is in Ucon
Each card is that ZIP code’s whole market, including any part outside Ucon. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Ucon’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)191 miles away |
|---|---|
| Closer regional airport | Idaho Falls Regional Airport (IDA)9 miles away |
| Nearest city of 250,000+ | Denver, CO447 miles away |
| Nearest city of 1 million+ | Phoenix, AZ690 miles away |
Straight-line distances from the center of Ucon; 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.
Ucon had 1,160 residents in the 2020 census, up 23% since 2000.
It’s the 75th largest of 232 towns in Idaho by population.
Bonneville County grew from 17,501 residents in 1920 to 123,964 in 2020.
Bonneville County, 1920–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 16°F. About 13.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Idaho Falls - Kifi, ID weather station (6 miles away).
63,119 jobs at 4,197 businesses in Bonneville County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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.
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Shares ZIP codes with Idaho Falls, Ammon and Lincoln.
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.