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ZIP Code85640

Tumacacori, AZ

Santa Cruz County · Arizona · United States
Home to 162 people across 2.863 square miles.

Mountain (no DST)10 ZIPs in county

At a glance

85640 by the numbers

Every figure below comes from the 2019–2023 American Community Survey 5-Year Estimates, the Census Gazetteer, or is computed from those. Margins of error are shown where they matter.

Population
162
±93 · bottom 10% nationally
Median household income
$58,424
US median $70,109 · 29th pctile
Median home value
—
US median $207,500 · —
Median age
74.2
US median 42 years
Population density
57/mi²
45th pctile most dense
Land area
2.863 mi²
negligible water area

Location

Where 85640 is

31.569034, -111.044692 · Census ZCTA internal pointOpen larger map →
Coordinates31.569034, -111.044692
Time zoneAmerica/Phoenix
CountySanta Cruz County
StateArizona (AZ)
Land area2.863 mi²
Coordinate sourceCensus ZCTA internal point

Local time

America/Phoenix

—:—:—

Current weather

Live from the National Weather Service

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Distance to major cities

Straight-line, computed from coordinates

Phoenix, AZ143.0 mi
San Diego, CA366.4 mi
Los Angeles, CA451.7 mi
Denver, CO658.5 mi

People

Who lives in 85640

162 residents in 73 households, averaging 2.22 people per household. The largest age group is 65+ at 72.8% of residents, and 86.3% of households are families.

Age distribution

Share of residents by age band

Under 180.0%
18-240.0%
25-340.0%
35-440.0%
45-540.0%
55-6427.2%
65+72.8%

Households

Composition and size

Total households73
Average household size2.22
Family households86.3%
Living alone13.7%
Median age74.2 years
Households with internet56.2%

Race & ethnicity

Census race categories. Hispanic or Latino origin is asked separately and overlaps these groups.

White67.3%
Native American26.5%
Other6.2%
Hispanic / Latino62.3%

Income & work

What people earn in 85640

The median household here earns $58,424 a year, below the US median of $70,109, which puts 85640 ahead of 29% of American ZIP codes. 0.0% of residents live below the poverty line.

Compared to the US

This ZIP against the national median

Median household income$58,424
LowestHighest
Higher than 29% of all US ZIP codes.
Median household income$58,424 ±$28,016
Per capita income$22,560
Poverty rate0.0%
Unemployment rate0.0%
Labor force participation24.1%

Household income distribution

Share of households in each bracket

<$25k13.7%
$25-50k24.7%
$50-75k61.6%
$75-100k0.0%
$100-150k0.0%
$150-200k0.0%
$200k+0.0%

Educational attainment among residents 25 and older: 0.0% hold a bachelor's degree or higher, 93.8% finished high school.

Housing

Homes and rent in 85640

Housing cost data is suppressed for this ZIP code.

Costs

Typical values

Median home value—
Median gross rent—/mo
Median year built1979
Housing units157
Vacancy rate53.5%

Own vs. rent

Of 73 occupied units

Owner-occupied61.6%
Renter-occupied38.4%
Owner households45
Renter households28

Building types

Units by structure size

Single family39.5%
2-4 units27.4%
20+ units26.8%
Mobile / other6.4%

Getting to work

How 85640 commutes

100.0% of workers drove alone, and the average one-way trip takes 49.2 minutes.

Mode of transport

Workers 16 and older

Drove alone100.0%

Travel time

Mean commute 49.2 minutes

<10 min0.0%
10-190.0%
20-2946.2%
30-440.0%
45-590.0%
60+53.8%

Overview

Understanding ZIP code 85640

ZIP code 85640 is assigned to Tumacacori, AZ, and falls within Santa Cruz County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 162 people live inside it.

At 57 residents per square mile spread over 2.863 square miles, 85640 reads as a rural area. It is a sparsely populated postal code, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.

Household earnings run below the national median. At $58,424, 85640 sits in the lower half, ahead of 29% of them. The US median for comparison is $70,109. Bear in mind that median income describes the midpoint household, not the average — it is not pulled upward by a handful of very high earners the way a mean would be.

Living here

What life in Tumacacori looks like

The building stock is dominated by detached single-family houses, which account for 39.5% of housing units here. The median construction year is 1979, making the housing here from the later twentieth century. The vacancy rate of 53.5% is high, which in many places reflects seasonal or second-home use rather than abandonment.

The population skews considerably older than the national median, with a median age of 74.2 against 42 nationally. The average household holds 2.22 people, and 86.3% are family households.

Getting to work takes 49.2 minutes on average one way. The dominant mode is drove alone at 100.0% of workers.

Where to stay

Where to stay in Tumacacori, AZ

85640 covers a rural area, and accommodation within the postal code itself is likely to be sparse — perhaps a country inn, a lodge or a vacation rental rather than a conventional hotel. Widening the search radius is usually the practical approach, and it also opens up more availability at short notice.

For reference, Phoenix, AZ is about 143.0 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.

Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.

Book a Hotel →

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Practical uses

What ZIP code 85640 is used for

Beyond addressing mail, 85640 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.

For anyone weighing a move, 85640 offers a compact profile of Tumacacori: 162 residents, a median household income of $58,424, 0.0% of adults holding a bachelor's degree or higher, and an unemployment rate of 0.0%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.

One caution worth repeating: a postal code is not a neighbourhood. 85640 may cover parts of several distinct areas, and a single neighbourhood in Tumacacori may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.

Nearby

ZIP codes near 85640

The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every Arizona ZIP code or use the ZIP Express Lookup to search by city, county or time zone.

More in Santa Cruz County

Look up another

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Questions

Common questions about 85640

What city is ZIP code 85640 in?
85640 serves Tumacacori, Arizona, in Santa Cruz County, United States.
What is the population of 85640?
About 162 people live in ZIP code 85640, according to the US Census Bureau's 2019–2023 American Community Survey 5-Year Estimates. The margin of error on that figure is ±93. That works out to roughly 57 people per square mile.
What is the average income in 85640?
The median household income in 85640 is $58,424 per year, compared with a US median of $70,109. Per capita income is $22,560. Median income is more representative than an average because it isn't skewed by a small number of very high earners.
Is 85640 a good place to live?
That depends on what you're looking for, but here are the facts: 0.0% of adults hold a bachelor's degree or higher, the unemployment rate is 0.0%, and the median age is 74.2. The average commute is 49.2 minutes. We publish the numbers and let you weigh them.
What time zone is 85640 in?
85640 observes Mountain (no DST) Time (America/Phoenix). This zone does not observe daylight saving time.
How big is ZIP code 85640?
ZIP code 85640 covers 2.863 square miles of land, per the US Census Bureau's 2023 Gazetteer files.
Is 85640 urban, suburban or rural?
By population density, 85640 reads as a rural area. It holds 57 people per square mile across 2.863 square miles of land. For reference, densities above 10,000 per square mile generally indicate an urban core, 1,000–3,000 is typically suburban, and under 200 is rural. These are rules of thumb rather than official designations — the Census Bureau classifies urban and rural areas by census block, not by ZIP code.
What is the commute like from 85640?
The average one-way commute from 85640 takes about 49.2 minutes. The most common way to travel is drove alone, used by 100.0% of workers aged 16 and over. Commute figures cover people who were employed and working outside the home during the survey period.
How many people work in 85640?
About 39 residents of 85640 are employed. Labor force participation stands at 24.1% and the unemployment rate is 0.0%. Note this counts residents by where they live, not by where they work — a ZIP with many offices can have far more jobs than employed residents.
Where should I stay when visiting 85640?
Accommodation in and around Tumacacori, AZ ranges with the character of the area. See the 'Where to stay' section on this page for local context, and use the live search there for current availability and pricing.
Does 85640 cover more than one city or county?
This page lists Tumacacori as the primary place and Santa Cruz County as the county. ZIP codes follow mail delivery routes rather than municipal or county lines, so a single code can straddle boundaries, and USPS also recognises alternate acceptable city names for many codes. If you need the definitive answer for a specific street address, the USPS ZIP Code Lookup is the authority.
Can ZIP code 85640 change?
Yes. USPS adjusts ZIP codes as delivery volumes shift — codes are occasionally split, merged, retired or newly created, and boundaries move more often than most people assume. The Census Bureau's ZCTA definitions, which underpin the demographic figures on this page, are redrawn only once a decade, so the two can drift apart between censuses.

Methodology

Where this data comes from

  • Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
  • Demographics, income, housing, commute — US Census Bureau, American Community Survey 2019–2023 5-Year Estimates, ZIP Code Tabulation Area 85640. Tables B01001, B01002, B01003, B02001, B03003, B08301, B08303, B11001, B15003, B17001, B19001, B19013, B19301, B23025, B25002, B25003, B25024, B25035, B25064, B25077, B28002.
  • Land and water area — US Census Bureau 2023 Gazetteer Files.
  • Weather — NOAA National Weather Service, fetched live in your browser.
  • Map — OpenStreetMap contributors (ODbL).
On accuracy. ACS figures are survey estimates, not counts. The margin of error shown alongside the population figure means the true value has a 90% chance of falling in that range. For small ZIP codes the error can be large relative to the estimate — treat the direction as more reliable than the exact number. This page reports data for ZCTA 85640, the Census approximation of the USPS delivery area.