Seminole, Florida demographics

Seminole, FL demographics: median age 55.3; 36.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Seminole city, Florida · Incorporated city · GEOID 1264975. The survey estimates a population of 19,396 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Seminole is 55.3 years, with a 90% margin of error of 3.0 years. There are 9,084 households (±417). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	55.3 ±3.0	42.6 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 19,396
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Under 18	2,566 ±381	13.2% ±2.0 pp	19.5%	22.0%
18–34	2,685 ±435	13.8% ±2.2 pp	20.7%	22.8%
35–64	7,648 ±610	39.4% ±3.1 pp	38.4%	38.0%
65 and older	6,497 ±538	33.5% ±2.8 pp	21.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 19,396
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Male	9,257 ±381	47.7% ±2.0 pp	49.1%	49.5%
Female	10,139 ±381	52.3% ±2.0 pp	50.9%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 19,396
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
White alone	15,803 ±589	81.5% ±3.0 pp	55.9%	61.0%
Black or African American alone	519 ±296 · low precision	2.7% ±1.5 pp · low precision	15.1%	12.2%
American Indian and Alaska Native alone	55 ±46 · low precision	0.3% ±0.2 pp · low precision	0.3%	0.9%
Asian alone	624 ±266	3.2% ±1.4 pp	2.9%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.2%
Some other race alone	131 ±82 · low precision	0.7% ±0.4 pp · low precision	6.3%	7.1%
Two or more races	2,264 ±531	11.7% ±2.7 pp	19.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 19,396
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Not Hispanic or Latino	17,221 ±591	88.8% ±3.0 pp	72.6%	80.7%
Hispanic or Latino	2,175 ±585	11.2% ±3.0 pp	27.4%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 9,084
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Married-couple family	3,982 ±240	43.8% ±1.7 pp	46.7%	46.9%
Other family: male householder, no spouse present	195 ±92	2.1% ±1.0 pp	5.2%	5.1%
Other family: female householder, no spouse present	730 ±169	8.0% ±1.8 pp	12.7%	12.2%
Nonfamily: householder living alone	3,581 ±502	39.4% ±5.2 pp	28.3%	28.7%
Nonfamily: householder not living alone	596 ±158	6.6% ±1.7 pp	7.2%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,084
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Households with people under 18	1,367 ±186	15.0% ±1.9 pp	26.5%	29.5%
Households without people under 18	7,717 ±513	85.0% ±4.1 pp	73.5%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,084
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
One-person nonfamily households	3,581 ±502	39.4% ±5.2 pp	28.3%	28.7%
Two-person households	3,685 ±369	40.6% ±3.6 pp	36.6%	33.8%
Three-person households	743 ±167	8.2% ±1.8 pp	15.4%	15.3%
Four-person households	774 ±170	8.5% ±1.8 pp	11.6%	12.6%
Five-person households	208 ±97	2.3% ±1.1 pp	5.2%	5.9%
Six-person households	93 ±87 · low precision	1.0% ±1.0 pp · low precision	1.9%	2.2%
Seven or more people	0 ±34 · low precision	0.0% ±0.4 pp · low precision	1.1%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 19,396
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Native	17,460 ±330	90.0% ±1.7 pp	78.1%	85.9%
Foreign born	1,936 ±327	10.0% ±1.7 pp	21.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 18,882
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
English only	16,614 ±550	88.0% ±2.7 pp	69.4%	77.7%
Spanish	1,081 ±434	5.7% ±2.3 pp	22.6%	13.6%
French, Haitian, or Cajun	99 ±87 · low precision	0.5% ±0.5 pp · low precision	2.7%	0.7%
German or other West Germanic	94 ±72 · low precision	0.5% ±0.4 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	316 ±185 · low precision	1.7% ±1.0 pp · low precision	0.7%	0.7%
Other Indo-European	314 ±209 · low precision	1.7% ±1.1 pp · low precision	1.9%	2.0%
Korean	34 ±54 · low precision	0.2% ±0.3 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	34 ±54 · low precision	0.2% ±0.3 pp · low precision	0.4%	1.1%
Vietnamese	42 ±58 · low precision	0.2% ±0.3 pp · low precision	0.3%	0.5%
Tagalog, including Filipino	75 ±53 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.6%
Other Asian and Pacific Island	67 ±45 · low precision	0.4% ±0.2 pp · low precision	0.5%	1.1%
Arabic	109 ±155 · low precision	0.6% ±0.8 pp · low precision	0.4%	0.5%
Other and unspecified	3 ±6 · low precision	0.0% ±0.0 pp · low precision	0.4%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 15,804
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Less than high school graduate	829 ±228	5.2% ±1.4 pp	10.1%	10.4%
High school graduate or equivalency	3,607 ±367	22.8% ±2.2 pp	27.2%	26.0%
Some college, no degree	3,787 ±494	24.0% ±3.0 pp	18.5%	19.1%
Associate’s degree	1,850 ±334	11.7% ±2.1 pp	10.1%	8.8%
Bachelor’s degree	3,751 ±442	23.7% ±2.7 pp	21.3%	21.6%
Graduate or professional degree	1,980 ±288	12.5% ±1.8 pp	12.9%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 19,353
Category	Count ± MOE	Share ± MOE (pp)	Florida	U.S.
Same house	16,969 ±455	87.7% ±2.3 pp	86.3%	87.7%
Moved within same county	983 ±289	5.1% ±1.5 pp	6.6%	6.3%
Moved from a different county in the same state	354 ±230 · low precision	1.8% ±1.2 pp · low precision	3.1%	3.1%
Moved from a different state	846 ±265	4.4% ±1.4 pp	2.9%	2.3%
Moved from abroad	201 ±163 · low precision	1.0% ±0.8 pp · low precision	1.1%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

5.2% of Seminole residents (±1.6 percentage points) had no health insurance coverage when surveyed, compared with 11.5% in Florida and 8.4% nationally. 92.3% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Seminole	Florida	U.S.	Compared with Florida
People without health insurance Civilian noninstitutionalized population	5.2% ±1.6 pp	11.5%	8.4%	Lower
Households with a broadband subscription Households	92.3% ±1.2 pp	91.6%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	9.6% ±1.6 pp	7.4%	6.2%	Higher

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Seminole . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Seminole housing and cost context or return to the city profile.