Residential delivery area · Utah
ZIP Code 84320: Lewiston, UT
ZIP code 84320 is in Lewiston, Utah, entirely in Cache County (Census 2020 ZIP-county file). About 3,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $103,810 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Lewiston (55%) and Cove (26%); 19% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lewiston · its only residential ZIP
- County
- Cache County
- Census places
- Lewiston (55%); Cove (26%) census-designated place
- Metro area
- Logan, UT-ID
- House district
- UT-1 119th Congress
- State
- Utah
- Time zone
- Mountain
- Land area
- 47.3 sq mi · 67 people per sq mi
Where is ZIP code 84320?
84320 centers on 41.953°, -111.852° and covers 47.3 square miles of land plus 0.2 of water. It borders 6 ZIP codes: 84333, 84338, 84308, 83237, 84335, 83263.
The map draws ZIP code areas only. For the streets inside 84320, 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 84320 compare with the rest of Cache County?
| Measure | 84320 | In Cache County | In UT |
|---|---|---|---|
| People (ACS 2020-2024) | 3,162 | 8th of 18 | 122nd of 298 |
| Median household income | $104k | 6th of 10 | 53rd of 145 |
| Median home value | $380k | 11th of 11 | 120th of 153 |
Its median household income is higher than in 83% of U.S. residential ZIP codes, and it is denser than 47% 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 84320?
The 2020 Census counted 2,411 people in 84320; the ACS, which samples households over 2020-2024, estimates 3,162. Between the 2010 and 2020 censuses its population grew 7.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,162±514 (90% margin)
- 2020 Census count
- 2,411+7.8% since 2010 (2,237)
- Households
- 844
- Median age
- 29.9
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 84320?
Of the 3,162 people the ACS estimates in 84320, 39.9% are under 18 and 11.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.4%).
- Under 1839.9%
- 18 to 6448.5%
- 65 and older11.5%
- White, not Hispanic88.4%
- Hispanic or Latino9.6%
- Other or two or more1.3%
- Asian, not Hispanic0.7%
- Black, not Hispanic0.0%
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 84320 earn?
Median household income is $103,810 (ACS 2020-2024), the 6th highest of the 10 ranked ZIP codes in Cache County. It rose from $73,529 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $103,810±$19,930
- Income per person
- $32,943
- Below the poverty line
- 2.5%
- Unemployed (of the labor force)
- 3.5%
- Adults 25+ with a bachelor's degree
- 25.0%
- Adjusted gross income per tax return, 2022
- $76,473980 returns; wages 70% 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 84320?
FHFA's house price index for 84320, built from repeat sales and appraisals of the same homes, rose 155% from 2015 to 2025 and rose 80% from 2020 to 2025, and moved +22.7% in 2025.
- Median home value (owners' estimate)
- $380,200
- Median gross rent
- $927
- Homes owned by their occupants
- 83.5%
- Housing units
- 899
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 84320?
63 business establishments had a location in this ZIP code in 2023, 8 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction20
- Retail trade11
- Manufacturing7
- Other services (except public administration)6
- Finance and insurance4
- Administrative and support and waste management and remediation services3
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 84320?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 84333 | Richmond | 3,093 | $109k | 4.0 mi |
| 84338 | Trenton | 526 | $95k | 5.1 mi |
| 84308 | Cornish | 260 | $83k | 6.0 mi |
| 83237 | Franklin, ID | 1,567 | $86k | 6.4 mi |
| 84335 | Smithfield | 16,210 | $98k | 9.1 mi |
| 83263 | Preston, ID | 9,940 | $63k | 16.6 mi |
| 84327 | Newton | 921 | $77k | 9.6 mi (near) |
| 84318 | Hyde Park | 5,604 | $113k | 10.7 mi (near) |
| 84305 | Clarkston | 667 | $65k | 10.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.