Nogales, Arizona demographics

Nogales, AZ demographics: median age 36.4; 17.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Nogales city, Arizona · Incorporated city · GEOID 0449640. The survey estimates a population of 19,841 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Nogales is 36.4 years, with a 90% margin of error of 1.4 years. There are 6,538 households (±377). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	36.4 ±1.4	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 19,841
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Under 18	5,096 ±492	25.7% ±2.5 pp	21.6%	22.0%
18–34	4,557 ±452	23.0% ±2.3 pp	23.2%	22.8%
35–64	6,462 ±549	32.6% ±2.8 pp	36.2%	38.0%
65 and older	3,726 ±399	18.8% ±2.0 pp	18.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 19,841
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Male	9,164 ±327	46.2% ±1.6 pp	49.9%	49.5%
Female	10,677 ±329	53.8% ±1.7 pp	50.1%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 19,841
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
White alone	3,669 ±907	18.5% ±4.6 pp	59.0%	61.0%
Black or African American alone	41 ±23 · low precision	0.2% ±0.1 pp · low precision	4.6%	12.2%
American Indian and Alaska Native alone	131 ±117 · low precision	0.7% ±0.6 pp · low precision	4.0%	0.9%
Asian alone	66 ±78 · low precision	0.3% ±0.4 pp · low precision	3.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.2%
Some other race alone	3,248 ±696	16.4% ±3.5 pp	9.1%	7.1%
Two or more races	12,686 ±1,179	63.9% ±5.9 pp	19.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 19,841
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Not Hispanic or Latino	1,302 ±383	6.6% ±1.9 pp	68.6%	80.7%
Hispanic or Latino	18,539 ±380	93.4% ±1.9 pp	31.4%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 6,538
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Married-couple family	2,542 ±348	38.9% ±4.8 pp	46.7%	46.9%
Other family: male householder, no spouse present	351 ±124	5.4% ±1.9 pp	5.6%	5.1%
Other family: female householder, no spouse present	1,716 ±305	26.2% ±4.4 pp	11.9%	12.2%
Nonfamily: householder living alone	1,734 ±325	26.5% ±4.7 pp	27.5%	28.7%
Nonfamily: householder not living alone	195 ±90	3.0% ±1.4 pp	8.2%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 6,538
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Households with people under 18	2,339 ±268	35.8% ±3.5 pp	28.7%	29.5%
Households without people under 18	4,199 ±404	64.2% ±4.9 pp	71.3%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 6,538
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
One-person nonfamily households	1,734 ±325	26.5% ±4.7 pp	27.5%	28.7%
Two-person households	1,738 ±289	26.6% ±4.1 pp	35.6%	33.8%
Three-person households	1,154 ±264	17.7% ±3.9 pp	14.3%	15.3%
Four-person households	986 ±243	15.1% ±3.6 pp	11.8%	12.6%
Five-person households	467 ±173	7.1% ±2.6 pp	6.1%	5.9%
Six-person households	262 ±117	4.0% ±1.8 pp	2.8%	2.2%
Seven or more people	197 ±106 · low precision	3.0% ±1.6 pp · low precision	1.9%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 19,841
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Native	11,313 ±650	57.0% ±3.3 pp	87.0%	85.9%
Foreign born	8,528 ±648	43.0% ±3.3 pp	13.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 18,688
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
English only	1,800 ±423	9.6% ±2.3 pp	74.3%	77.7%
Spanish	16,811 ±480	90.0% ±2.3 pp	19.3%	13.6%
French, Haitian, or Cajun	27 ±41 · low precision	0.1% ±0.2 pp · low precision	0.3%	0.7%
German or other West Germanic	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.4%	0.7%
Other Indo-European	0 ±22 · low precision	0.0% ±0.1 pp · low precision	1.1%	2.0%
Korean	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.5%	1.1%
Vietnamese	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.5%
Tagalog, including Filipino	30 ±46 · low precision	0.2% ±0.2 pp · low precision	0.4%	0.6%
Other Asian and Pacific Island	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.7%	1.1%
Arabic	20 ±36 · low precision	0.1% ±0.2 pp · low precision	0.4%	0.5%
Other and unspecified	0 ±22 · low precision	0.0% ±0.1 pp · low precision	1.9%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 13,000
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Less than high school graduate	4,103 ±560	31.6% ±4.2 pp	10.6%	10.4%
High school graduate or equivalency	3,719 ±432	28.6% ±3.2 pp	23.5%	26.0%
Some college, no degree	2,126 ±393	16.4% ±3.0 pp	23.3%	19.1%
Associate’s degree	765 ±285	5.9% ±2.2 pp	9.3%	8.8%
Bachelor’s degree	1,449 ±303	11.1% ±2.3 pp	20.3%	21.6%
Graduate or professional degree	838 ±248	6.4% ±1.9 pp	13.0%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 19,637
Category	Count ± MOE	Share ± MOE (pp)	Arizona	U.S.
Same house	16,725 ±827	85.2% ±4.2 pp	85.7%	87.7%
Moved within same county	2,007 ±748	10.2% ±3.8 pp	8.5%	6.3%
Moved from a different county in the same state	519 ±403 · low precision	2.6% ±2.1 pp · low precision	1.6%	3.1%
Moved from a different state	102 ±69 · low precision	0.5% ±0.4 pp · low precision	3.5%	2.3%
Moved from abroad	284 ±220 · low precision	1.4% ±1.1 pp · low precision	0.7%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

21.6% of Nogales residents (±3.1 percentage points) had no health insurance coverage when surveyed, compared with 10.5% in Arizona and 8.4% nationally. 84.1% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Nogales	Arizona	U.S.	Compared with Arizona
People without health insurance Civilian noninstitutionalized population	21.6% ±3.1 pp	10.5%	8.4%	Higher
Households with a broadband subscription Households	84.1% ±2.2 pp	91.5%	91.0%	Lower
Veterans Civilian population age 18 and older	2.4% ±0.8 pp	7.9%	6.2%	Lower

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Nogales . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Nogales housing and cost context or return to the city profile.