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 Low-density area
- $48,719
- Median income Below-median income area
- $113,200
- Median home value Below-median home value
- 14.0%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
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 average Florida ZIP), while per-capita income is $25,155. The poverty rate is 20.4%, so the area-level income figures should not be treated as typical household experience. Home values sit below the statewide ZIP benchmark: the median is $113,200 (70% below the average Florida ZIP), and median rent is $893; owner occupancy is 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. The page also surfaces 2 ZIP codes within roughly 10 miles and 3 more in Calhoun County, so 32421 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
10 establishments
- Retail trade
Retail trade
5 establishments
- Other services (except public administration)
Other services (except public administration)
5 establishments
- Transportation and warehousing 3
Transportation and warehousing
3 establishments
- Health care and social assistance 3
Health care and social assistance
3 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, 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
Who lives in ZIP 32421?
45.2
Median Age
50.4%
Male
49.6%
Female
2.8%
Foreign-Born
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 ZIP avg
$25,155
Per Capita Income
20.4%
Poverty Rate
4.5%
Unemployment Rate
32.4 min
Mean Commute Time
How ZIP 32421 ranks among Florida ZIPs
Altha, FL household income vs. every Florida ZIP code
Median household income among 946 reporting Florida ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$48,719 10th percentile higher than 10% of 946 Florida ZIPs
Each bar is a $20K-wide band; taller bars hold more Florida 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,879housing units
1,879
Total Housing Units
1,427
Occupied Units
452
Vacant Units
2.83
Avg Household Size
Occupancy Type
$113,200
Median Home Value
-70% vs state ZIP avg
$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.
- 32448
Marianna (32448)
8,684 residents
- 32421
Altha (32421)
4,497 residents
- 32430 1,199
Clarksville (32430)
1,199 residents
What this shows Among its immediate neighbors, ZIP 32421 ranks #2 by population - useful context the national average alone can't give.
ZIP 32421 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 32430
Clarksville (32430)
$60,197 median income
- 32421
Altha (32421)
$48,719 median income
- 32448
Marianna (32448)
$43,862 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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 32421, both outside FL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (4,497 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Calhoun County
Related Areas
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.
Related
Take this with you
What to do with ZIP 32421's numbers, next.
- See how ZIP 32421 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Altha, FL ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.