85128 ZIP Code — Coolidge, AZ

Pinal County, Arizona

ZIP code 85128 is located in Coolidge, Arizona, within Pinal County. It covers approximately 166.66 square miles and serves a population of 17,659 residents. This is a standard ZIP code in the Mountain (MT) — no DST timezone, served by area code 520.

About ZIP code 85128

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $177,600. Owner-occupancy sits near the national average at 68%.

Median household income is $55,768. Poverty affects 25% of residents, above the national average. SNAP benefit usage at 28% of households reflects economic stress in the area. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with public administration as the leading industry. The average commute of 23 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (23%) compared to national benchmarks.

Overall, ZIP code 85128 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

17,659

population

166.66

sq mi land

Standard

ZIP type

Mountain (MT) — no DST

timezone

85128 ZIP code map

Cities in ZIP code 85128

Below are the cities the US Postal Service accepts for ZIP code 85128. Using any city not on this list may result in mail delivery delays.

City	Status
Coolidge	Preferred

Nearby ZIP codes

85194 Casa Grande (8.2 mi) 85143 San Tan Valley (11.6 mi) 85131 Eloy (13.1 mi) 85132 Florence (13.6 mi) 85122 Casa Grande (14.1 mi) 85193 Casa Grande (16 mi) 85142 Queen Creek (16 mi) 85141 Picacho (17.9 mi) 85140 San Tan Valley (18.9 mi)

Demographics updated 05/2026

Population
Total population	17,659
Population density	106 / sq mi
State FIPS	04
County FIPS	021

Geography
Land area	166.66 sq mi
Water area	1.74 sq mi
Latitude	32.9723
Longitude	-111.5327
Timezone	Mountain (MT) — no DST
Area code	520

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.5%	42.0%	40.6%
$50k – $100k	28.0%	34.4%	31.9%
$100k – $200k	17.3%	20.0%	21.1%
Over $200k	5.2%	3.6%	6.4%

Demographics & statistics

17,659

Population

106

People per sq mi

33.8

Median age

$55,768

Median household income

$26,280

Per capita income

$177,600

Median home value

$949

Median monthly rent

67.6%

Home ownership

25.0%

Poverty rate

16.5%

Unemployment

4,361

Housing units

13.1%

Bachelor's or higher

Age distribution

Male Female

529

Under 5

554

571

5–9

597

707

10–14

741

840

15–19

880

580

20–24

607

1,277

25–34

1,338

1,106

35–44

1,159

1,043

45–54

1,093

418

55–59

437

333

60–64

349

696

65–74

729

393

75–84

411

132

85+

139

← Male

Female →

Age summary

Group	Count	%
Under 18	4,784	27.1%
18 and over	12,875	72.9%
65 and over	2,500	14.2%
Median age	33.8 years

Race & ethnicity

White 34.4%

Hispanic or Latino 22.2%

Two or more races 14.7%

American Indian / Alaska Native 12.8%

Other race 10.2%

Black or African American 5.4%

Asian 0.2%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	7,804	34.4%
Hispanic or Latino	5,038	22.2%
Two or more races	3,340	14.7%
American Indian / Alaska Native	2,903	12.8%
Other race	2,326	10.2%
Black or African American	1,222	5.4%
Asian	52	0.2%
Native Hawaiian / Pacific Islander	12	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.5%	42.0%	40.6%
$50k – $100k	28.0%	34.4%	31.9%
$100k – $200k	17.3%	20.0%	21.1%
Over $200k	5.2%	3.6%	6.4%

Under $10k 8.6%

$10k–$15k 4.3%

$15k–$25k 10.4%

$25k–$35k 7.8%

$35k–$50k 14.4%

$50k–$75k 18.8%

$75k–$100k 9.6%

$100k–$150k 14.8%

$150k–$200k 4.8%

$200k+ 6.4%

Range	% of households
Under $10k	8.6%
$10k–$15k	4.3%
$15k–$25k	10.4%
$25k–$35k	7.8%
$35k–$50k	14.4%
$50k–$75k	18.8%
$75k–$100k	9.6%
$100k–$150k	14.8%
$150k–$200k	4.8%
$200k+	6.4%
Median income	$55,768

Housing

Home values

Under $50k 11.9%

$50k–$100k 11.5%

$100k–$150k 17.8%

$150k–$200k 16.3%

$200k–$300k 21.3%

$300k–$500k 15.6%

$500k–$1M 2.4%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$177,600
Median rent / month	$949
Owner occupied	67.6%
Renter occupied	32.4%
Vacant	10.8%
Single-family detached	80.7%
Large apartment buildings	1.7%
Mobile homes	10.0%
Median rooms	5.4
Avg household size (owned)	3.05

Year built

Era	%
2020 or later	1.8%
2010–2019	4.8%
2000–2009	42.5%
1990–1999	8.0%
1980–1989	7.2%
1970–1979	12.2%
1960–1969	9.0%
1950–1959	8.8%
1940–1949	1.6%
1939 or earlier	4.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	8.0%
2 bedrooms	18.9%
3 bedrooms	47.1%
4 bedrooms	17.8%
5+ bedrooms	7.1%

Vehicles per household

Vehicles	% of households
No vehicle	7.1%
1 vehicle	28.7%
2 vehicles	32.9%
3 or more	31.2%

Heating fuel

Fuel type	%
Utility gas	23.9%
Electricity	70.3%
Propane / LP gas	3.9%
Solar	0.5%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	2,197	40.1%
Cohabiting couple	523	9.6%
Male householder, no spouse	918	16.8%
Female householder, no spouse	1,835	33.5%
Households with children under 18	2,220	40.6%
Households with seniors (65+)	1,856	33.9%
Average household size	3.17

Marital status

Status	Male	Female
Never married	48.1%	30.3%
Married	37.5%	35.3%
Separated	1.3%	4.5%
Widowed	0.8%	10.4%
Divorced	12.2%	19.5%

Education

Less than 9th grade 6.0%

Some HS, no diploma 8.8%

HS graduate 37.6%

Some college, no degree 27.2%

Associate's degree 7.4%

Bachelor's degree 9.6%

Graduate / professional 3.4%

Metric	%
HS diploma or higher	85.2%
Bachelor's or higher	13.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	92	1.9%
Kindergarten	174	3.6%
Elementary school	2,162	44.7%
High school	1,280	26.5%
College / grad school	1,129	23.3%

Employment

Industry of employment

Public administration 18.6%

Education & healthcare 16.9%

Construction 11.4%

Retail trade 10.5%

Professional & management 9.0%

Manufacturing 7.7%

Arts, food & hospitality 7.1%

Transportation & utilities 5.1%

Agriculture & mining 4.9%

Other services 3.2%

Finance & real estate 3.1%

Information 2.6%

Occupation

Category	%
Management, business & arts	22.2%
Service	28.7%
Sales & office	18.7%
Natural resources & construction	16.7%
Production & transportation	13.7%

Employment type

Type	%
Private sector	64.9%
Government	29.3%
Self-employed	5.5%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	74.0%
Carpool	19.6%
Public transit	0.2%
Walk	1.3%
Work from home	4.4%
Other means	0.6%
Avg commute (minutes)	23.3

Poverty

All people 25.0%

Under 18 years 36.6%

18 and over 20.7%

Married-couple families 8.0%

Female-led households 54.0%

Income support

Source	% of households
Social Security	38.2%
Retirement income	31.4%
Supplemental Security	8.1%
Cash public assistance	4.0%
Food stamps / SNAP	27.8%

Health indicators

Condition	%
Obesity	40.0%
High blood pressure	31.1%
High cholesterol	31.5%
Diabetes	12.9%
Heart disease	6.6%
Stroke	3.6%
Asthma	12.3%
Arthritis	23.9%
Kidney disease	3.4%
Pulmonary disease	8.0%
Cancer	5.1%

Behavior / access	%
Smoking	23.1%
Binge drinking	14.9%
No physical activity	30.1%
Less than 7 hrs sleep	39.3%
Depression	21.7%
Fair or poor health	21.0%
Poor mental health	17.5%
Poor physical health	14.0%
No health insurance	21.9%
Visited doctor (checkup)	73.0%
Visited dentist	46.6%
Cholesterol screening	85.9%
Teeth loss	20.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,225	9.8%

Disability	%
Any disability	15.5%
Under 18	5.1%
18–64 years	13.2%
65 and over	44.2%

Health insurance coverage

Type	%
Private insurance	44.7%
Public insurance	51.0%
No insurance	13.8%
Uninsured under 19	16.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	16,576	93.9%
Spanish	1,077	6.5%
Other Indo-European	1,014	6.1%
Asian & Pacific Islander	2	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	16,197	91.7%
Born in same state	16,007	90.6%
Born in different state	10,923	61.9%
Foreign born	190	1.1%
Naturalized citizen	1,462	8.3%
Not a US citizen	626	42.8%

Ancestry

Ancestry	Count	%
Italian	943	5.3%
French	557	3.2%
Arab	316	1.8%
Polish	193	1.1%

Ancestry	Count	%
Dutch	120	0.7%
English	89	0.5%
German	23	0.1%

Technology access

Metric	% of households
Computer access	31.0%
Internet access	89.3%

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

Frequently asked questions about ZIP code 85128

What city is ZIP code 85128 in?

ZIP code 85128 is primarily assigned to Coolidge, Arizona.

What county is ZIP code 85128 in?

ZIP code 85128 falls within Pinal County, Arizona.

What is the poverty rate in ZIP code 85128?

25% of residents in ZIP code 85128 live below the poverty line, above the national average.

How educated is the population of ZIP code 85128?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 85128 have a large retiree population?

38% of households in ZIP code 85128 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 85128 have a large veteran population?

10% of civilians in ZIP code 85128 are veterans, above the national average of ~7%.

What timezone is ZIP code 85128 in?

ZIP code 85128 observes the MST timezone.