Tumacacori, AZ · standard
ZIP Code 85640
Santa Cruz County, Arizona - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 441
- 23/sq mi Moderate-density area
- $55,417
- Median income Below-median income area
- 0.0%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Tumacacori pairs one of the lowest household incomes in the country, in a rural, renter-heavy area.
- 22nd pct
- household income, US ZIPs
- 23
- people per sq mi
- 0%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 85640 against every reporting US ZIP.
ZIP code 85640 is a sparsely populated ZIP (a standard USPS delivery area) in Tumacacori, Santa Cruz County, Arizona, home to just 441 residents across 19.2 square miles, a density of 23 people per square mile, in the Phoenix time zone.
ZIP 85640 reports a modest median household income of $55,417 (24% below the average Arizona ZIP), while per-capita income is $19,640. The poverty rate is 18.4%, with unemployment at 0.0%; those measures add context to the income figure. The ACS does not report a median home value for this ZIP, so housing cost context is limited to the available tenure and rent fields.
Formal educational attainment runs low here: just 0.0% of adults hold a bachelor's degree or higher, the median age is 40.6, and the average commute is -. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Santa Cruz County, so 85640 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 85640, Tumacacori, AZ · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
441
Population
19.2
Area (sq mi)
23
People / sq mi
Phoenix
Time Zone
standard
ZIP Type
Who lives in ZIP 85640?
40.6
Median Age
41.1%
Male
58.9%
Female
60.9%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$55,417
Median Household Income
-24% vs state ZIP avg
$19,640
Per Capita Income
18.4%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 85640 ranks among Arizona ZIPs
Tumacacori, AZ household income vs. every Arizona ZIP code
Median household income among 372 reporting Arizona ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$55,417 29th percentile higher than 29% of 372 Arizona ZIPs
Each bar is a $20K-wide band; taller bars hold more Arizona ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
165housing units
165
Total Housing Units
85
Occupied Units
80
Vacant Units
2.44
Avg Household Size
Occupancy Type
1979
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 10 business establishments in ZIP 85640, employing approximately 38 people with a combined annual payroll of $1,636,000.
10
Businesses
38
Employees
$1.6M
Annual Payroll
0
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 85640 vs 85648 →
ZIP 85640 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 85621
Nogales (85621)
23,054 residents
- 85648
Rio Rico (85648)
19,080 residents
- 85645 2,231
Amado (85645)
2,231 residents
- 85646 1,311
Tubac (85646)
1,311 residents
- 85640 441
Tumacacori (85640)
441 residents
What this shows Among its immediate neighbors, ZIP 85640 ranks #5 by population - useful context the national average alone can't give.
ZIP 85640 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 85646
Tubac (85646)
$73,438 median income
- 85648
Rio Rico (85648)
$61,519 median income
- 85645
Amado (85645)
$60,714 median income
- 85640
Tumacacori (85640)
$55,417 median income
- 85621
Nogales (85621)
$43,464 median income
What this shows By household income, ZIP 85640 ranks #4 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 85640, both outside AZ so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Santa Cruz County
Related Areas
Frequently Asked Questions
What county is ZIP code 85640 in?
ZIP code 85640 (Tumacacori) is located in Santa Cruz County, Arizona. Santa Cruz County contains multiple ZIP codes, see the full list at /counties/santa-cruz-az.
What is the population of ZIP code 85640?
ZIP code 85640 in Tumacacori, AZ has a population of 441 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 85640?
The median household income in ZIP 85640 is $55,417, which is 27% below the national average of $76,288.
What is the demographic makeup of ZIP 85640?
The largest racial group in ZIP 85640 is Two or More Ethnicities at 43.0%. Hispanic or Latino residents make up 65.7% of the population.
How many businesses are in ZIP code 85640?
ZIP code 85640 has 10 business establishments employing approximately 38 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the poverty rate in ZIP code 85640?
The poverty rate in ZIP code 85640 is 18.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 85640's numbers, next.
- See how ZIP 85640 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Tumacacori, AZ ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.