Florence, South Carolina demographics

Florence, SC demographics: median age 37.8; 30.4% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Florence city, South Carolina · Incorporated city · GEOID 4525810. The survey estimates a population of 40,408 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Florence is 37.8 years, with a 90% margin of error of 1.8 years. There are 16,413 households (±593). 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	37.8 ±1.8	40.2 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 40,408
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Under 18	10,042 ±817	24.9% ±2.0 pp	21.4%	22.0%
18–34	8,524 ±757	21.1% ±1.9 pp	22.0%	22.8%
35–64	14,641 ±980	36.2% ±2.4 pp	37.7%	38.0%
65 and older	7,201 ±604	17.8% ±1.5 pp	18.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 40,408
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Male	18,167 ±689	45.0% ±1.7 pp	48.7%	49.5%
Female	22,241 ±692	55.0% ±1.7 pp	51.3%	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: 40,408
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
White alone	16,714 ±1,180	41.4% ±2.9 pp	63.3%	61.0%
Black or African American alone	20,165 ±1,107	49.9% ±2.7 pp	24.8%	12.2%
American Indian and Alaska Native alone	61 ±62 · low precision	0.2% ±0.2 pp · low precision	0.4%	0.9%
Asian alone	1,307 ±285	3.2% ±0.7 pp	1.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±30 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.2%
Some other race alone	742 ±313	1.8% ±0.8 pp	2.8%	7.1%
Two or more races	1,419 ±464	3.5% ±1.1 pp	6.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 40,408
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Not Hispanic or Latino	38,554 ±489	95.4% ±1.2 pp	92.6%	80.7%
Hispanic or Latino	1,854 ±483	4.6% ±1.2 pp	7.4%	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: 16,413
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Married-couple family	6,341 ±503	38.6% ±2.7 pp	47.1%	46.9%
Other family: male householder, no spouse present	792 ±225	4.8% ±1.4 pp	4.5%	5.1%
Other family: female householder, no spouse present	3,005 ±518	18.3% ±3.1 pp	13.4%	12.2%
Nonfamily: householder living alone	5,611 ±651	34.2% ±3.8 pp	29.2%	28.7%
Nonfamily: householder not living alone	664 ±185	4.0% ±1.1 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 16,413
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Households with people under 18	4,946 ±433	30.1% ±2.4 pp	28.6%	29.5%
Households without people under 18	11,467 ±747	69.9% ±3.8 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 16,413
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
One-person nonfamily households	5,611 ±651	34.2% ±3.8 pp	29.2%	28.7%
Two-person households	5,165 ±591	31.5% ±3.4 pp	36.3%	33.8%
Three-person households	2,781 ±417	16.9% ±2.5 pp	15.4%	15.3%
Four-person households	1,702 ±297	10.4% ±1.8 pp	11.6%	12.6%
Five-person households	743 ±211	4.5% ±1.3 pp	5.0%	5.9%
Six-person households	172 ±110 · low precision	1.0% ±0.7 pp · low precision	1.7%	2.2%
Seven or more people	239 ±126 · low precision	1.5% ±0.8 pp · low precision	0.9%	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: 40,408
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Native	38,323 ±467	94.8% ±1.2 pp	94.2%	85.9%
Foreign born	2,085 ±462	5.2% ±1.1 pp	5.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 37,815
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
English only	35,442 ±641	93.7% ±1.3 pp	91.6%	77.7%
Spanish	1,175 ±355	3.1% ±0.9 pp	5.3%	13.6%
French, Haitian, or Cajun	13 ±24 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.7%
German or other West Germanic	62 ±72 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	30 ±44 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.7%
Other Indo-European	500 ±254 · low precision	1.3% ±0.7 pp · low precision	0.8%	2.0%
Korean	170 ±215 · low precision	0.4% ±0.6 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	65 ±79 · low precision	0.2% ±0.2 pp · low precision	0.2%	1.1%
Vietnamese	78 ±115 · low precision	0.2% ±0.3 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	56 ±85 · low precision	0.1% ±0.2 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	31 ±41 · low precision	0.1% ±0.1 pp · low precision	0.4%	1.1%
Arabic	23 ±25 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.5%
Other and unspecified	170 ±138 · low precision	0.4% ±0.4 pp · low precision	0.3%	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: 27,348
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Less than high school graduate	3,211 ±630	11.7% ±2.3 pp	9.9%	10.4%
High school graduate or equivalency	7,051 ±753	25.8% ±2.7 pp	28.2%	26.0%
Some college, no degree	5,506 ±675	20.1% ±2.4 pp	19.8%	19.1%
Associate’s degree	3,267 ±563	11.9% ±2.0 pp	10.0%	8.8%
Bachelor’s degree	4,631 ±552	16.9% ±2.0 pp	19.8%	21.6%
Graduate or professional degree	3,682 ±520	13.5% ±1.9 pp	12.3%	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: 39,789
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Same house	35,285 ±1,012	88.7% ±2.5 pp	87.2%	87.7%
Moved within same county	2,371 ±675	6.0% ±1.7 pp	5.5%	6.3%
Moved from a different county in the same state	1,081 ±522	2.7% ±1.3 pp	3.1%	3.1%
Moved from a different state	890 ±355	2.2% ±0.9 pp	3.7%	2.3%
Moved from abroad	162 ±148 · low precision	0.4% ±0.4 pp · low precision	0.4%	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

7.1% of Florence residents (±1.3 percentage points) had no health insurance coverage when surveyed, compared with 9.6% in South Carolina and 8.4% nationally. 86.3% 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	Florence	South Carolina	U.S.	Compared with South Carolina
People without health insurance Civilian noninstitutionalized population	7.1% ±1.3 pp	9.6%	8.4%	Lower
Households with a broadband subscription Households	86.3% ±4.4 pp	88.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	6.2% ±1.2 pp	8.3%	6.2%	Lower

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 Florence . 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 Florence housing and cost context or return to the city profile.