32421 ZIP Code — Altha, FL

Calhoun County, Florida

ZIP code 32421 is located in Altha, Florida, within Calhoun County. It covers approximately 125.51 square miles and serves a population of 3,929 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 850.

About ZIP code 32421

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $110,800. Owner-occupancy is high at 82%, well above the national average.

Median household income is $41,923. Poverty affects 22% of residents, above the national average. SNAP benefit usage at 21% of households reflects economic stress in the area. 55% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (24%) compared to national benchmarks. 20% of residents lack health insurance, above the national average.

Notable community characteristics include a notable veteran presence at 15% of civilians, above the national average of 7%; and disability rates above the national average at 26%.

Overall, ZIP code 32421 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a strong veteran community, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

3,929

population

125.51

sq mi land

Standard

ZIP type

Central (CT)

timezone

32421 ZIP code map

Cities in ZIP code 32421

Below are the cities the US Postal Service accepts for ZIP code 32421. Using any city not on this list may result in mail delivery delays.

City	Status
Altha	Preferred

Nearby ZIP codes

32430 Clarksville (8.9 mi) 32448 Marianna (11 mi) 32424 Blountstown (11.5 mi) 32438 Fountain (12.5 mi) 32420 Alford (14.2 mi) 32449 Wewahitchka (16.9 mi) 32442 Grand Ridge (19 mi)

Demographics updated 05/2026

Population
Total population	3,929
Population density	31 / sq mi
State FIPS	12
County FIPS	013

Geography
Land area	125.51 sq mi
Water area	0.86 sq mi
Latitude	30.5171
Longitude	-85.2046
Timezone	Central (CT)
Area code	850

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	67.0%	62.1%	43.4%
$50k – $100k	24.4%	27.7%	30.8%
$100k – $200k	7.5%	8.5%	19.3%
Over $200k	1.1%	1.6%	6.4%

Demographics & statistics

3,929

Population

People per sq mi

43.7

Median age

$41,923

Median household income

$23,667

Per capita income

$110,800

Median home value

$755

Median monthly rent

82.0%

Home ownership

21.5%

Poverty rate

3.0%

Unemployment

1,419

Housing units

9.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

121

5–9

113

202

10–14

189

124

15–19

117

20–24

298

25–34

280

150

35–44

141

272

45–54

254

233

55–59

219

119

60–64

111

255

65–74

239

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	912	23.2%
18 and over	3,017	76.8%
65 and over	729	18.6%
Median age	43.7 years

Race & ethnicity

White 91.3%

Two or more races 4.5%

Hispanic or Latino 2.1%

Black or African American 1.9%

American Indian / Alaska Native 0.2%

Group	Count	%
White	3,664	91.3%
Two or more races	181	4.5%
Hispanic or Latino	83	2.1%
Black or African American	75	1.9%
American Indian / Alaska Native	9	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	67.0%	62.1%	43.4%
$50k – $100k	24.4%	27.7%	30.8%
$100k – $200k	7.5%	8.5%	19.3%
Over $200k	1.1%	1.6%	6.4%

Under $10k 5.6%

$10k–$15k 8.5%

$15k–$25k 13.3%

$25k–$35k 10.9%

$35k–$50k 17.9%

$50k–$75k 14.6%

$75k–$100k 11.2%

$100k–$150k 12.7%

$150k–$200k 3.7%

$200k+ 1.6%

Range	% of households
Under $10k	5.6%
$10k–$15k	8.5%
$15k–$25k	13.3%
$25k–$35k	10.9%
$35k–$50k	17.9%
$50k–$75k	14.6%
$75k–$100k	11.2%
$100k–$150k	12.7%
$150k–$200k	3.7%
$200k+	1.6%
Median income	$41,923

Housing

Home values

Under $50k 25.0%

$50k–$100k 19.8%

$100k–$150k 17.6%

$150k–$200k 23.5%

$200k–$300k 9.5%

$300k–$500k 4.6%

Housing overview

Metric	Value
Median home value	$110,800
Median rent / month	$755
Owner occupied	82.0%
Renter occupied	18.0%
Vacant	20.8%
Single-family detached	53.3%
Large apartment buildings	0.0%
Mobile homes	43.3%
Median rooms	5.1
Avg household size (owned)	3.09

Year built

Era	%
2020 or later	0.2%
2010–2019	9.8%
2000–2009	17.0%
1990–1999	19.3%
1980–1989	15.3%
1970–1979	11.4%
1960–1969	10.7%
1950–1959	8.7%
1940–1949	6.4%
1939 or earlier	1.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	9.1%
2 bedrooms	23.7%
3 bedrooms	52.6%
4 bedrooms	11.5%
5+ bedrooms	0.5%

Vehicles per household

Vehicles	% of households
No vehicle	7.8%
1 vehicle	30.1%
2 vehicles	38.9%
3 or more	23.2%

Heating fuel

Fuel type	%
Utility gas	1.5%
Electricity	84.6%
Propane / LP gas	8.4%
Wood	4.3%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	615	46.9%
Cohabiting couple	67	5.1%
Male householder, no spouse	238	18.2%
Female householder, no spouse	390	29.8%
Households with children under 18	320	24.4%
Households with seniors (65+)	498	38.0%
Average household size	3.00

Marital status

Status	Male	Female
Never married	24.8%	17.5%
Married	49.3%	52.5%
Separated	2.7%	0.5%
Widowed	5.4%	9.9%
Divorced	17.7%	19.6%

Education

Less than 9th grade 9.6%

Some HS, no diploma 10.8%

HS graduate 37.2%

Some college, no degree 25.9%

Associate's degree 7.2%

Bachelor's degree 7.7%

Graduate / professional 1.6%

Metric	%
HS diploma or higher	79.6%
Bachelor's or higher	9.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	1.5%
Kindergarten	91	9.4%
Elementary school	572	58.8%
High school	153	15.7%
College / grad school	141	14.5%

Employment

Industry of employment

Education & healthcare 19.8%

Arts, food & hospitality 14.3%

Public administration 14.0%

Construction 10.3%

Retail trade 8.7%

Agriculture & mining 7.2%

Professional & management 6.0%

Manufacturing 5.5%

Transportation & utilities 4.5%

Other services 3.4%

Wholesale trade 3.3%

Finance & real estate 2.1%

Information 0.8%

Occupation

Category	%
Management, business & arts	24.3%
Service	24.8%
Sales & office	20.9%
Natural resources & construction	18.1%
Production & transportation	12.0%

Employment type

Type	%
Private sector	70.6%
Government	21.8%
Self-employed	7.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.7%
Carpool	17.9%
Public transit	0.0%
Walk	1.1%
Work from home	6.4%
Other means	0.0%
Avg commute (minutes)	32.1

Poverty

All people 21.5%

Under 18 years 33.9%

18 and over 17.8%

Married-couple families 7.0%

Female-led households 48.1%

Income support

Source	% of households
Social Security	54.9%
Retirement income	33.9%
Supplemental Security	5.3%
Cash public assistance	2.0%
Food stamps / SNAP	20.5%

Health indicators

Condition	%
Obesity	35.6%
High blood pressure	35.4%
High cholesterol	36.3%
Diabetes	11.3%
Heart disease	7.7%
Stroke	3.7%
Asthma	9.8%
Arthritis	27.0%
Kidney disease	3.2%
Pulmonary disease	10.6%
Cancer	6.8%

Behavior / access	%
Smoking	23.8%
Binge drinking	16.4%
No physical activity	28.4%
Less than 7 hrs sleep	36.6%
Depression	22.0%
Fair or poor health	19.5%
Poor mental health	17.7%
Poor physical health	13.4%
No health insurance	21.9%
Visited doctor (checkup)	73.0%
Visited dentist	51.5%
Cholesterol screening	88.8%
Teeth loss	18.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	451	14.9%

Disability	%
Any disability	26.2%
Under 18	16.9%
18–64 years	22.8%
65 and over	48.4%

Health insurance coverage

Type	%
Private insurance	45.6%
Public insurance	46.2%
No insurance	20.0%
Uninsured under 19	12.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,758	95.6%
Spanish	5	0.1%
Other Indo-European	5	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,907	99.4%
Born in same state	3,864	98.3%
Born in different state	2,587	65.8%
Foreign born	43	1.1%
Naturalized citizen	22	0.6%
Not a US citizen	1	4.5%

Ancestry

Ancestry	Count	%
Arab	592	15.1%
Italian	585	14.9%
French	451	11.5%

Ancestry	Count	%
English	61	1.6%
German	11	0.3%
Dutch	5	0.1%

Technology access

Metric	% of households
Computer access	33.3%
Internet access	90.2%

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

Frequently asked questions about ZIP code 32421

What city is ZIP code 32421 in?

ZIP code 32421 is primarily assigned to Altha, Florida.

What county is ZIP code 32421 in?

ZIP code 32421 falls within Calhoun County, Florida.

Does ZIP code 32421 have a large retiree population?

55% of households in ZIP code 32421 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 32421?

9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the poverty rate in ZIP code 32421?

22% of residents in ZIP code 32421 live below the poverty line, above the national average.

Is ZIP code 32421 mostly owner-occupied?

82% of occupied units in ZIP code 32421 are owner-occupied, well above the national average.

What timezone is ZIP code 32421 in?

ZIP code 32421 observes the CST timezone.