85640 ZIP Code — Tumacacori, AZ

Santa Cruz County, Arizona

ZIP code 85640 is located in Tumacacori, Arizona, within Santa Cruz County. It covers approximately 2.86 square miles and serves a population of 81 residents. This is a standard ZIP code in the Mountain (MT) — no DST timezone, served by area code 520.

population

2.86

sq mi land

Standard

ZIP type

Mountain (MT) — no DST

timezone

85640 ZIP code map

Cities in ZIP code 85640

Below are the cities the US Postal Service accepts for ZIP code 85640. Using any city not on this list may result in mail delivery delays.

City	Status
Tumacacori	Acceptable
Tumacacori	Preferred

Nearby ZIP codes

85637 Sonoita (10.4 mi) 85648 Rio Rico (11.5 mi) 85621 Nogales (12.4 mi) 85614 Green Valley (13.5 mi) 85622 Green Valley (15.6 mi)

Demographics updated 06/2026

Population
Total population	81
Population density	28 / sq mi
State FIPS	04
County FIPS	023

Geography
Land area	2.86 sq mi
Water area	0.00 sq mi
Latitude	31.6418
Longitude	-110.9621
Timezone	Mountain (MT) — no DST
Area code	520

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	56.5%	40.6%
$50k – $100k	70.6%	27.0%	31.9%
$100k – $200k	0.0%	12.7%	21.1%
Over $200k	29.4%	3.8%	6.4%

Demographics & statistics

Population

People per sq mi

62.8

Median age

Median household income

$28,793

Per capita income

Median home value

Median monthly rent

100.0%

Home ownership

0.0%

Poverty rate

0.0%

Unemployment

167

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

55–59

60–64

65–74

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	81	100.0%
65 and over	35	43.2%
Median age	62.8 years

Race & ethnicity

White 100%

Group	Count	%
White	81	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	56.5%	40.6%
$50k – $100k	70.6%	27.0%	31.9%
$100k – $200k	0.0%	12.7%	21.1%
Over $200k	29.4%	3.8%	6.4%

$50k–$75k 100.0%

Range	% of households
$50k–$75k	100.0%
Median income	$0

Housing

Home values

$150k–$200k 55.8%

$300k–$500k 44.2%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	74.3%
Single-family detached	37.1%
Large apartment buildings	0.0%
Mobile homes	37.7%
Median rooms	3.5
Avg household size (owned)	1.88

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	27.5%
1990–1999	11.4%
1980–1989	11.4%
1970–1979	37.1%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	12.6%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	51.5%
2 bedrooms	25.7%
3 bedrooms	11.4%
4 bedrooms	11.4%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	44.2%
2 vehicles	0.0%
3 or more	55.8%

Heating fuel

Fuel type	%
Electricity	55.8%
Propane / LP gas	44.2%

Households & families

Household type	Count	%
Married-couple family	24	55.8%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	19	44.2%
Households with children under 18	0	0.0%
Households with seniors (65+)	19	44.2%
Average household size	1.88

Marital status

Status	Male	Female
Never married	0.0%	0.0%
Married	60.0%	53.7%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	40.0%	46.3%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 70.4%

Some college, no degree 0.0%

Associate's degree 29.6%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Finance & real estate 100.0%

Occupation

Category	%
Management, business & arts	0.0%
Service	0.0%
Sales & office	100.0%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	100.0%
Government	0.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	100.0%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	44.2%
Retirement income	44.2%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	29.3%
High blood pressure	32.5%
High cholesterol	35.2%
Diabetes	11.3%
Heart disease	6.0%
Stroke	2.7%
Asthma	8.9%
Arthritis	21.5%
Kidney disease	3.2%
Pulmonary disease	5.2%
Cancer	6.5%

Behavior / access	%
Smoking	11.4%
Binge drinking	13.8%
No physical activity	19.2%
Less than 7 hrs sleep	28.5%
Depression	17.4%
Fair or poor health	13.5%
Poor mental health	12.4%
Poor physical health	9.8%
No health insurance	16.8%
Visited doctor (checkup)	71.9%
Visited dentist	69.4%
Cholesterol screening	92.2%
Teeth loss	8.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	24	29.6%

Disability	%
Any disability	43.2%
Under 18	0.0%
18–64 years	0.0%
65 and over	100.0%

Health insurance coverage

Type	%
Private insurance	80.2%
Public insurance	43.2%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	81	100.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	81	100.0%
Born in same state	81	100.0%
Born in different state	59	72.8%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	22	27.2%

Technology access

Metric	% of households
Computer access	53.1%
Internet access	100.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 85640

What city is ZIP code 85640 in?

ZIP code 85640 is primarily assigned to Tumacacori, Arizona.

What county is ZIP code 85640 in?

ZIP code 85640 falls within Santa Cruz County, Arizona.

Does ZIP code 85640 have an older population?

43% of residents in ZIP code 85640 are 65 or older, above the national average of ~17%.

Does ZIP code 85640 have a large veteran population?

30% of civilians in ZIP code 85640 are veterans, above the national average of ~7%.

Does ZIP code 85640 have a large retiree population?

44% of households in ZIP code 85640 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 85640?

ZIP code 85640 has an estimated population of 81 residents, with a density of 28 people per square mile.

What timezone is ZIP code 85640 in?

ZIP code 85640 observes the MST timezone.