Town · Florida
Altha, Florida
Altha, town, in Calhoun County, Florida. Altha had 492 residents on July 1, 2025 by the Census Bureau's estimate, up 0.2% since 2020; the 2020 Census counted 496 and the ACS 2020-2024 5-year estimates put it at 457 (±183). GEOID 1201000.
Residents, July 2025 estimate
492
Census Bureau estimate (no margin published)
2020 Census count: 496 · ACS 2020-2024: 457 ±183
Median household income
$29,583
±$8,965 (90% margin)
Florida: $74,568
Median home value
$84,500
±$13,299 (90% margin)
Florida: $359,000
Median gross rent
$900
±$423 (90% margin)
Florida: $1,669
Where is Altha and what county is it in?
Altha is a town in Calhoun County, Florida. It covers 1.3 square miles of land, 371 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Altha, and is it growing?
The Census Bureau estimates that 492 people lived in Altha on July 1, 2025, up 0.2% since 2020, slower than Florida (+8.9%). The 2020 Census counted 496 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 457 (±183).
| Measure | Altha | Calhoun County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 457 ±183 | 13,492 | no clear change |
| Households | 189 ±71 | 4,636 | no clear change |
| Average household size | 2.42 ±0.45 | 2.53 | no clear change |
| Housing units | 208 ±77 | 5,683 | no clear change |
Altha's population since 2000
From 506 in 2000 to 492 in 2025: down 2.8%. The 2000, 2010 and 2020 figures are census counts, each for Altha as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Altha?
The median resident of Altha is 50.0 years old; 28.2% are under 18 and 19.0% are 65 or older. The largest group is non-Hispanic white residents at 89.1%, then non-Hispanic residents of two or more races at 7.2%.
| Measure | Altha | Calhoun County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 50.0 ±15.0 | 42.2 | no clear change |
| Under 18 years | 28.2% ±13.9 pts | 19.8% | – |
| 65 years and over | 19.0% ±9.0 pts | 18.6% | – |
| Male | 42.0% ±8.8 pts | 55.6% | – |
| Hispanic or Latino (any race) | 1.5% ±2.4 pts | 5.3% | – |
| White alone, not Hispanic | 89.1% ±7.7 pts | 75.5% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±10.8 pts | 11.4% | – |
| Asian alone, not Hispanic | 0.0% ±10.8 pts | 0.8% | – |
| American Indian and Alaska Native alone, not Hispanic | 1.1% ±1.7 pts | 0.9% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±10.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 7.2% ±6.0 pts | 5.1% | – |
| Some other race alone, not Hispanic | 1.1% ±4.2 pts | 1.1% | – |
| Born outside the United States | 3.7% ±4.8 pts | 3.6% | – |
| Speak a language other than English at home (age 5+) | 2.0% ±3.7 pts | 5.2% | – |
| Civilian veterans (age 18+) | 6.7% ±5.9 pts | 8.6% | – |
| With a disability | 38.9% ±13.5 pts | 24.8% | – |
| No health insurance coverage | 13.1% ±8.3 pts | 17.6% | no clear change |
| High school graduate or higher (age 25+) | 72.3% ±11.4 pts | 82.6% | – |
| Bachelor's degree or higher (age 25+) | 9.0% ±7.8 pts | 13.6% | – |
| Graduate or professional degree (age 25+) | 1.6% ±2.3 pts | 4.3% | – |
| Lived in the same house a year earlier | 90.5% ±7.9 pts | 86.8% | – |
| Moved from another state in the past year | 0.0% ±10.9 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Altha earn?
Half of Altha's 189 households earn less than $29,583 a year (±$8,965), against $50,517 in Calhoun County and $74,568 in Florida. In 2015-2019 it was $30,562 in 2024 dollars; the margins of error cannot tell the two periods apart. 37.0% of residents live below the poverty line.
| Measure | Altha | Calhoun County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $29,583 ±$8,965 | $50,517 | no clear change |
| Mean household income | $47,540 ±$14,632 | $65,117 | – |
| Per capita income | $20,658 ±$6,865 | $23,413 | no clear change |
| People below the poverty line | 37.0% ±17.1 pts | 20.7% | no clear change |
| Children under 18 below the poverty line | 55.8% ±33.6 pts | 26.4% | no clear change |
| Households receiving SNAP | 41.3% ±14.5 pts | 20.0% | – |
| Households with a computer | 91.5% ±7.8 pts | 91.4% | – |
| Households with a broadband subscription | 87.3% ±9.1 pts | 87.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Altha?
Owners occupy 48.1% of Altha's occupied homes and renters 51.9%. The median owner-occupied home is valued at $84,500 by its owner (±$13,299). The median renter pays $900 a month including utilities, and 76.9% of renters pay 35% or more of their income on rent.
| Measure | Altha | Calhoun County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $84,500 ±$13,299 | $145,300 | no clear change |
| Median gross rent | $900 ±$423 | $779 | no clear change |
| Renters paying 35% or more of income on rent | 76.9% ±22.1 pts | 43.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,125 ±$325 | $1,215 | – |
| Owner-occupied homes | 48.1% ±15.2 pts | 78.8% | −23.5 pts |
| Renter-occupied homes | 51.9% ±15.2 pts | 21.2% | – |
| Housing units | 208 ±77 | 5,683 | no clear change |
| Homeowner vacancy rate | 0.0% ±39.5 pts | 3.2% | – |
| Rental vacancy rate | 0.0% ±37.7 pts | 5.6% | – |
| Single-family detached homes | 55.3% ±15.8 pts | 59.3% | – |
| Mobile homes | 35.6% ±15.3 pts | 34.3% | – |
| Built 2020 or later | 0.0% ±22.1 pts | 4.7% | – |
| Built 2010 to 2019 | 9.1% ±7.0 pts | 9.1% | – |
| Built 1939 or earlier | 8.7% ±8.0 pts | 5.0% | – |
| Households with no vehicle | 10.1% ±8.5 pts | 5.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Altha work and get to work?
68.6% of Altha's workers drive alone. The average trip to work takes 28.9 minutes.
| Measure | Altha | Calhoun County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 42.0% ±13.5 pts | 43.6% | – |
| Unemployment rate | 0.0% ±30.1 pts | 8.0% | – |
| Drove alone to work | 68.6% ±21.1 pts | 83.2% | – |
| Carpooled | 24.8% ±20.4 pts | 9.4% | – |
| Public transportation | 0.0% ±30.8 pts | 0.0% | – |
| Walked | 2.2% ±4.4 pts | 1.3% | – |
| Worked from home | 4.4% ±14.5 pts | 4.1% | – |
| Mean travel time to work | 28.9 min ±6.5 | 29.9 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Altha?
No census tract lies mostly in Altha; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 101Calhoun County | 2,273 | $55,406 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Altha) · Census block assignment files
How does Altha compare with other places in Florida?
By the Census Bureau's July 2025 estimates, Altha is the 13,257th-most populous of the 19,476 U.S. incorporated places that have one and the 375th-most populous of 411 in Florida.
Altha is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 375th | 411 |
Altha's figures with every place in Florida (CSV)
Every place in Florida, sortable · Compare Altha with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Altha?
24 of the 57 figures for Altha on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Altha are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Altha.