Residential delivery area · Arizona
ZIP Code 85621: Nogales, AZ
ZIP code 85621 uses the postal name Nogales, Arizona and lies entirely in Santa Cruz County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $43,464 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Nogales (7%), Beyerville (under 1%) and Kino Springs (under 1%); 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Nogales · its only residential ZIP
- County
- Santa Cruz County
- Census places
- Nogales (7%); Beyerville (under 1%) census-designated place; Kino Springs (under 1%) census-designated place
- Micro area
- Nogales, AZ
- House district
- AZ-7 119th Congress
- State
- Arizona
- Time zone
- Mountain (no daylight saving)
- Land area
- 284.9 sq mi · 76 people per sq mi
Where is ZIP code 85621?
85621 centers on 31.388°, -110.900° and covers 284.9 square miles of land plus 0.5 of water. It borders 4 ZIP codes: 85648, 85624, 85601, 85633.
The map draws ZIP code areas only. For the streets inside 85621, 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 85621 compare with the rest of Santa Cruz County?
| Measure | 85621 | In Santa Cruz County | In AZ |
|---|---|---|---|
| People (ACS 2020-2024) | 21,593 | 3rd of 9 | 144th of 417 |
| Median household income | $44k | 5th of 5 | 249th of 264 |
| Median home value | $193k | 7th of 7 | 239th of 282 |
Its median household income is higher than in 8% of U.S. residential ZIP codes, and it is denser than 49% 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 85621?
The 2020 Census counted 21,730 people in 85621; the ACS, which samples households over 2020-2024, estimates 21,593. Between the 2010 and 2020 censuses its population fell 5.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,593
- 2020 Census count
- 21,730−5.7% since 2010 (23,054)
- Households
- 7,186
- Median age
- 36.6
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 85621?
Of the 21,593 people the ACS estimates in 85621, 25.1% are under 18 and 19.1% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (92.2%).
- Under 1825.1%
- 18 to 6455.8%
- 65 and older19.1%
- Hispanic or Latino92.2%
- White, not Hispanic5.5%
- Other or two or more1.5%
- Asian, not Hispanic0.6%
- Black, 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 85621 earn?
Median household income is $43,464 (ACS 2020-2024), the 5th highest of the 5 ranked ZIP codes in Santa Cruz County. It rose from $37,050 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $43,464
- Income per person
- $22,016
- Below the poverty line
- 27.3%
- Unemployed (of the labor force)
- 15.0%
- Adults 25+ with a bachelor's degree
- 17.6%
- Adjusted gross income per tax return, 2022
- $46,05210,110 returns; wages 66% 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 85621?
FHFA's house price index for 85621, built from repeat sales and appraisals of the same homes, rose 91% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved −4.2% in 2025.
- Median home value (owners' estimate)
- $193,200
- Median gross rent
- $745
- Homes owned by their occupants
- 49.8%
- Housing units
- 8,218
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 85621?
655 business establishments had a location in this ZIP code in 2023, 31 fewer than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing129
- Wholesale trade106
- Retail trade102
- Accommodation and food services56
- Health care and social assistance53
- Other services (except public administration)37
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 85621?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 85648 | Rio Rico | 22,118 | $62k | 9.6 mi |
| 85624 | Patagonia | 1,546 | $56k | 13.9 mi |
| 85601 | Arivaca | 268 | $31k | 28.8 mi |
| 85633 | Sasabe | 48 | $21k | 40.1 mi |
| 85640 | Tumacacori | 207 | $55k | 15.1 mi (near) |
| 85646 | Tubac | 1,345 | $73k | 18.4 mi (near) |
| 85645 | Amado | 1,249 | $61k | 25.8 mi (near) |
| 85637 | Sonoita | 1,105 | $100k | 26.0 mi (near) |
| 85611 | Elgin | 1,454 | $92k | 28.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Nogales?
2 more ZIP codes carry the postal name Nogales, AZ without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for them.
| ZIP | County |
|---|---|
| 85628 | Santa Cruz County |
| 85662 | Santa Cruz County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.