Residential delivery area · Idaho
ZIP Code 83401: Idaho Falls, ID
ZIP code 83401 uses the postal name Idaho Falls, Idaho and lies entirely in Bonneville County (Census 2020 ZIP-county file). About 48,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Idaho Falls's 4 residential ZIP codes. Median household income is $78,497 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Lincoln (under 1%) and Ucon (under 1%), and 4% in smaller places; 95% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Idaho Falls · 4 residential ZIPs
- County
- Bonneville County
- Census places
- Lincoln (under 1%) census-designated place; Ucon (under 1%)
- Metro area
- Idaho Falls, ID
- House district
- ID-2 119th Congress
- State
- Idaho
- Time zone
- Mountain
- Land area
- 197.3 sq mi · 243 people per sq mi
Where is ZIP code 83401?
83401 centers on 43.542°, -111.878° and covers 197.3 square miles of land plus 2.7 of water. It borders 7 ZIP codes: 83454, 83442, 83406, 83404, 83427, 83402, 83443.
The map draws ZIP code areas only. For the streets inside 83401, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 83401 compare with the rest of Idaho Falls?
| Measure | 83401 | In Idaho Falls | In Bonneville County | In ID |
|---|---|---|---|---|
| People (ACS 2020-2024) | 47,972 | 1st of 4 | 1st of 12 | 8th of 279 |
| Median household income | $79k | 3rd of 4 | 4th of 6 | 45th of 126 |
| Median home value | $359k | 3rd of 4 | 5th of 6 | 71st of 138 |
Its median household income is higher than in 60% of U.S. residential ZIP codes, and it is denser than 65% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 83401?
The 2020 Census counted 47,114 people in 83401; the ACS, which samples households over 2020-2024, estimates 47,972. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 47,972
- 2020 Census count
- 47,114
- Households
- 15,714
- Median age
- 31.9
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 83401?
Of the 47,972 people the ACS estimates in 83401, 31.0% are under 18 and 12.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.8%), then Hispanic or Latino (14.9%).
- Under 1831.0%
- 18 to 6456.4%
- 65 and older12.6%
- White, not Hispanic79.8%
- Hispanic or Latino14.9%
- Other or two or more4.5%
- Black, not Hispanic0.6%
- Asian, not Hispanic0.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 83401 earn?
Median household income is $78,497 (ACS 2020-2024), the 4th highest of the 6 ranked ZIP codes in Bonneville County.
- Median household income
- $78,497
- Income per person
- $34,222
- Below the poverty line
- 10.5%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 28.9%
- Adjusted gross income per tax return, 2022
- $68,92620,180 returns; wages 73% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 83401?
FHFA's house price index for 83401, built from repeat sales and appraisals of the same homes, rose 144% from 2015 to 2025 and rose 50% from 2020 to 2025, and moved −0.8% in 2025.
- Median home value (owners' estimate)
- $358,700
- Median gross rent
- $1,176
- Homes owned by their occupants
- 75.3%
- Housing units
- 16,447
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 83401?
1,373 business establishments had a location in this ZIP code in 2023, 226 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction264
- Retail trade186
- Health care and social assistance162
- Professional, scientific, and technical services139
- Other services (except public administration)101
- Wholesale trade89
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 83401?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 83454 | Ucon | 409 | $67k | 5.3 mi |
| 83442 | Rigby | 25,609 | $88k | 6.4 mi |
| 83406 | Idaho Falls | 19,696 | $87k | 7.7 mi |
| 83404 | Idaho Falls | 27,500 | $82k | 10.6 mi |
| 83427 | Iona | 2,931 | $84k | 14.2 mi |
| 83402 | Idaho Falls | 29,994 | $75k | 15.3 mi |
| 83443 | Ririe | 1,364 | $66k | 16.7 mi |
| 83431 | Lewisville | 1,045 | $91k | 12.7 mi (near) |
| 83434 | Menan | 1,816 | $83k | 16.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.