Bluffton, South Carolina demographics

Bluffton, SC demographics: median age 42.7; 51.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Bluffton town, South Carolina · Incorporated town · GEOID 4507210. The survey estimates a population of 33,157 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Bluffton is 42.7 years, with a 90% margin of error of 2.1 years. There are 12,987 households (±517). 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	42.7 ±2.1	40.2 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 33,157
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Under 18	7,518 ±842	22.7% ±2.5 pp	21.4%	22.0%
18–34	4,797 ±768	14.5% ±2.3 pp	22.0%	22.8%
35–64	12,688 ±1,021	38.3% ±3.1 pp	37.7%	38.0%
65 and older	8,154 ±950	24.6% ±2.9 pp	18.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 33,157
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Male	16,381 ±596	49.4% ±1.8 pp	48.7%	49.5%
Female	16,776 ±598	50.6% ±1.8 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: 33,157
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
White alone	25,333 ±1,291	76.4% ±3.9 pp	63.3%	61.0%
Black or African American alone	3,029 ±975	9.1% ±2.9 pp	24.8%	12.2%
American Indian and Alaska Native alone	91 ±113 · low precision	0.3% ±0.3 pp · low precision	0.4%	0.9%
Asian alone	478 ±290 · low precision	1.4% ±0.9 pp · low precision	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	1,312 ±600	4.0% ±1.8 pp	2.8%	7.1%
Two or more races	2,914 ±966	8.8% ±2.9 pp	6.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 33,157
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Not Hispanic or Latino	29,686 ±1,010	89.5% ±3.0 pp	92.6%	80.7%
Hispanic or Latino	3,471 ±1,012	10.5% ±3.1 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: 12,987
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Married-couple family	8,789 ±653	67.7% ±4.2 pp	47.1%	46.9%
Other family: male householder, no spouse present	275 ±166 · low precision	2.1% ±1.3 pp · low precision	4.5%	5.1%
Other family: female householder, no spouse present	1,073 ±369	8.3% ±2.8 pp	13.4%	12.2%
Nonfamily: householder living alone	2,092 ±437	16.1% ±3.3 pp	29.2%	28.7%
Nonfamily: householder not living alone	758 ±351	5.8% ±2.7 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 12,987
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Households with people under 18	4,232 ±448	32.6% ±3.2 pp	28.6%	29.5%
Households without people under 18	8,755 ±804	67.4% ±5.6 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 12,987
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
One-person nonfamily households	2,092 ±437	16.1% ±3.3 pp	29.2%	28.7%
Two-person households	6,137 ±737	47.3% ±5.4 pp	36.3%	33.8%
Three-person households	1,932 ±425	14.9% ±3.2 pp	15.4%	15.3%
Four-person households	1,894 ±395	14.6% ±3.0 pp	11.6%	12.6%
Five-person households	789 ±303	6.1% ±2.3 pp	5.0%	5.9%
Six-person households	71 ±70 · low precision	0.5% ±0.5 pp · low precision	1.7%	2.2%
Seven or more people	72 ±91 · low precision	0.6% ±0.7 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: 33,157
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Native	31,255 ±632	94.3% ±1.9 pp	94.2%	85.9%
Foreign born	1,902 ±632	5.7% ±1.9 pp	5.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 31,683
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
English only	28,459 ±872	89.8% ±2.6 pp	91.6%	77.7%
Spanish	2,146 ±715	6.8% ±2.3 pp	5.3%	13.6%
French, Haitian, or Cajun	280 ±205 · low precision	0.9% ±0.6 pp · low precision	0.3%	0.7%
German or other West Germanic	129 ±108 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	160 ±208 · low precision	0.5% ±0.7 pp · low precision	0.4%	0.7%
Other Indo-European	238 ±179 · low precision	0.8% ±0.6 pp · low precision	0.8%	2.0%
Korean	75 ±117 · low precision	0.2% ±0.4 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	21 ±32 · low precision	0.1% ±0.1 pp · low precision	0.2%	1.1%
Vietnamese	0 ±30 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	91 ±121 · low precision	0.3% ±0.4 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	3 ±7 · low precision	0.0% ±0.0 pp · low precision	0.4%	1.1%
Arabic	0 ±30 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.5%
Other and unspecified	81 ±80 · low precision	0.3% ±0.3 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: 23,934
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Less than high school graduate	756 ±346	3.2% ±1.4 pp	9.9%	10.4%
High school graduate or equivalency	3,229 ±613	13.5% ±2.5 pp	28.2%	26.0%
Some college, no degree	5,481 ±817	22.9% ±3.3 pp	19.8%	19.1%
Associate’s degree	2,035 ±510	8.5% ±2.1 pp	10.0%	8.8%
Bachelor’s degree	7,339 ±858	30.7% ±3.4 pp	19.8%	21.6%
Graduate or professional degree	5,094 ±816	21.3% ±3.3 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: 32,640
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Same house	27,285 ±1,098	83.6% ±3.3 pp	87.2%	87.7%
Moved within same county	1,399 ±537	4.3% ±1.6 pp	5.5%	6.3%
Moved from a different county in the same state	674 ±511 · low precision	2.1% ±1.6 pp · low precision	3.1%	3.1%
Moved from a different state	3,230 ±848	9.9% ±2.6 pp	3.7%	2.3%
Moved from abroad	52 ±54 · low precision	0.2% ±0.2 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

6.3% of Bluffton residents (±1.7 percentage points) had no health insurance coverage when surveyed, compared with 9.6% in South Carolina and 8.4% nationally. 96.7% 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	Bluffton	South Carolina	U.S.	Compared with South Carolina
People without health insurance Civilian noninstitutionalized population	6.3% ±1.7 pp	9.6%	8.4%	Lower
Households with a broadband subscription Households	96.7% ±1.7 pp	88.8%	91.0%	Higher
Veterans Civilian population age 18 and older	11.8% ±2.2 pp	8.3%	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 Bluffton . 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 Bluffton housing and cost context or return to the city profile.