ZIP code
85321
Ajo, AZ
85321 covers Ajo in Pima County, with 4,313 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 85321. Methodology
ZIP code map of 85321

About ZIP code 85321
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 85321. Not ACS. Methodology
People in 85321
Race
- White2,021
- Black or African American28
- American Indian or Alaska Native740
- Asian66
- Native Hawaiian and Pacific Islander6
- Other race298
- Two or more races504
Hispanic or Latino (any race): 1,143
Age
- Under 10327
- 10 to 19365
- 20 to 29383
- 30 to 39353
- 40 to 49333
- 50 to 59395
- 60 to 69658
- 70 to 79565
- 80 and older284
Income and housing in 85321
Education
- High school graduate86.4%
- Bachelor's degree27.9%
- Graduate degree8.8%
Places covering 85321
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Pima County97.6%
- Maricopa County2.4%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
9.3% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 85321
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 2,626 | |
| 2006 | 2,681 | |
| 2007 | 3,129 | |
| 2008 | 2,808 | |
| 2009 | 2,780 | |
| 2010 | 2,976 | |
| 2011 | 4,110 | 3,035 |
| 2012 | 4,543 | 2,930 |
| 2013 | 4,727 | 2,910 |
| 2014 | 4,854 | 2,860 |
| 2015 | 5,069 | 2,760 |
| 2016 | 4,873 | 2,640 |
| 2017 | 4,776 | 2,720 |
| 2018 | 4,370 | 2,630 |
| 2019 | 4,009 | 2,740 |
| 2020 | 3,768 | 2,740 |
| 2021 | 3,745 | 2,740 |
| 2022 | 3,621 | 2,690 |
| 2023 | 4,313 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 85321
12 nearest ZIP centroids (any distance)
- 85341Lukeville28.0 miPop 38 · Income —
- 85634Sells40.9 miPop 5,667 · Income $34,764
- 85139Maricopa44.6 miPop 19,522 · Income $85,716
- 85337Gila Bend45.4 miPop 2,396 · Income $49,260
- 85272Stanfield49.2 miPop 566 · Income —
- 85172Stanfield52.4 miPop 1,342 · Income $75,213
- 85193Casa Grande53.4 miPop 4,900 · Income $61,860
- 85239Maricopa55.4 miPop 3,166 · Income —
- 85138Maricopa56.9 miPop 52,342 · Income $93,609
- 85293Casa Grande57.2 miPop 276 · Income —
- 85322Arlington57.6 miPop 493 · Income $74,125
- 85123Arizona City58.1 miPop 8,828 · Income $60,610
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 85321, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 85321 FAQ
- What city is ZIP code 85321 in?
- 85321 is in Ajo, AZ.
- What county is 85321 in?
- 85321 is in Pima County.
- What is the median household income in 85321?
- The median household income in 85321 is $52,127.
- Which ZIP codes are near 85321?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 85321.