PlainZIP

Altha, FL · standard

ZIP Code 32421

Calhoun County, Florida - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

4,497
13/sq mi
$48,719
Median income
$113,200
Median home value
14.0%
Bachelor's or higher

The verdict

Altha pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

13th pct
household income, US ZIPs
14th pct
home value, US ZIPs
13
people per sq mi
84%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 32421 against every reporting US ZIP.

ZIP code 32421 covers 354.1 square miles in Altha, Calhoun County, Florida (a standard USPS delivery area), with a modest 4,497 residents on file, a density of 13 people per square mile, in the Chicago time zone.

ZIP 32421 reports a modest median household income of $48,719 (37% below the Florida average), while per-capita income is $25,155. The poverty rate stands at 20.4% and the unemployment rate at 4.5%. Median home value sits at $113,200 (70% below the state average), median rent at $893 a month, and owner-occupancy at 83.7%.

Formal educational attainment runs low here: just 14.0% of adults hold a bachelor's degree or higher, the median age is 45.2, and the average commute is 32 minutes. We also surface 2 nearby ZIP codes within roughly 10 miles and 3 additional ZIPs sharing Calhoun County, so you can benchmark 32421 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 32421

Top 5 sectors by establishment count in Altha, FL

Which industries have the most business establishments in ZIP 32421.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 32421, Altha, FL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

4,497

Population

354.1

Area (sq mi)

13

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 32421?

45.2

Median Age

50.4%

Male

49.6%

Female

2.8%

Foreign-Born

White 90.3%
African American 2.3%
Asian 0.8%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.4%
Hispanic or Latino 0.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$48,719

Median Household Income

-37% vs state

$25,155

Per Capita Income

20.4%

Poverty Rate

4.5%

Unemployment Rate

32.4 min

Mean Commute Time

How ZIP 32421 ranks nationally

Altha, FL household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$48,719 13th percentile higher than 13% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 58.1%
Bachelor's Degree or Higher 14.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,879

Total Housing Units

1,427

Occupied Units

452

Vacant Units

2.83

Avg Household Size

Occupancy Type

Owner 83.7%
Renter 16.3%

$113,200

Median Home Value

-70% vs state

$893

Median Rent

1992

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 36 business establishments in ZIP 32421, employing approximately 208 people with a combined annual payroll of $9,041,000.

36

Businesses

208

Employees

$9.0M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Construction 10 27.8%
Retail trade 5 13.9%
Other services (except public administration) 5 13.9%
Transportation and warehousing 3 8.3%
Health care and social assistance 3 8.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 32421 vs 32430 →

ZIP 32421 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 32421 ranks #2 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 32421 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 32421 ranks #2 of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
32430 Clarksville, FL 1,199 8.3 mi
32448 Marianna, FL 8,684 9.9 mi

More ZIP Codes in Calhoun County

32424 standard
Blountstown, FL
Pop: 7,994
32430 standard
Clarksville, FL
Pop: 1,199
32449 standard
Wewahitchka, FL
Pop: 478

Related Areas

Calhoun County Altha, FL Florida

Frequently Asked Questions

What county is ZIP code 32421 in? ▼
ZIP code 32421 (Altha) is located in Calhoun County, Florida. Calhoun County contains multiple ZIP codes, see the full list at /counties/calhoun-fl.
What is the population of ZIP code 32421? ▼
ZIP code 32421 in Altha, FL has a population of 4,497 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 32421? ▼
The median household income in ZIP 32421 is $48,719, which is 36% below the national average of $76,288.
What is the average home value in ZIP 32421? ▼
The median home value in ZIP 32421 is $113,200, which is 59% below the national average of $278,155.
What is the demographic makeup of ZIP 32421? ▼
The largest racial group in ZIP 32421 is White at 90.3%. Hispanic or Latino residents make up 0.5% of the population.
How many businesses are in ZIP code 32421? ▼
ZIP code 32421 has 36 business establishments employing approximately 208 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 32421? ▼
The top industries by establishment count in ZIP 32421 are: Construction (10), Retail trade (5), Other services (except public administration) (5). There are 5 industry sectors represented in total.
What is the education level in ZIP code 32421? ▼
In ZIP code 32421, 58.1% of residents aged 25+ have a high school diploma or higher, and 14.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 32421? ▼
The mean commute time for workers in ZIP code 32421 is 32.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 32421? ▼
In ZIP code 32421, approximately 83.7% of occupied housing units are owner-occupied and 16.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 32421? ▼
The poverty rate in ZIP code 32421 is 20.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.