Mount Pleasant, South Carolina demographics

Mount Pleasant, SC demographics: median age 42.6; 68.4% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Mount Pleasant town, South Carolina · Incorporated town · GEOID 4548535. The survey estimates a population of 93,993 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Mount Pleasant is 42.6 years, with a 90% margin of error of 1.1 years. There are 39,884 households (±962). 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	42.6 ±1.1	40.2 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 93,993
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Under 18	21,440 ±1,310	22.8% ±1.4 pp	21.4%	22.0%
18–34	15,223 ±1,236	16.2% ±1.3 pp	22.0%	22.8%
35–64	40,055 ±1,747	42.6% ±1.9 pp	37.7%	38.0%
65 and older	17,275 ±1,132	18.4% ±1.2 pp	18.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 93,993
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Male	45,754 ±913	48.7% ±1.0 pp	48.7%	49.5%
Female	48,239 ±912	51.3% ±1.0 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: 93,993
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
White alone	84,836 ±1,124	90.3% ±1.2 pp	63.3%	61.0%
Black or African American alone	2,556 ±671	2.7% ±0.7 pp	24.8%	12.2%
American Indian and Alaska Native alone	121 ±120 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.9%
Asian alone	1,585 ±484	1.7% ±0.5 pp	1.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	85 ±97 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.2%
Some other race alone	558 ±211	0.6% ±0.2 pp	2.8%	7.1%
Two or more races	4,252 ±791	4.5% ±0.8 pp	6.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 93,993
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Not Hispanic or Latino	91,334 ±677	97.2% ±0.7 pp	92.6%	80.7%
Hispanic or Latino	2,659 ±673	2.8% ±0.7 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: 39,884
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Married-couple family	22,410 ±891	56.2% ±1.8 pp	47.1%	46.9%
Other family: male householder, no spouse present	970 ±316	2.4% ±0.8 pp	4.5%	5.1%
Other family: female householder, no spouse present	2,097 ±425	5.3% ±1.1 pp	13.4%	12.2%
Nonfamily: householder living alone	12,029 ±1,253	30.2% ±3.1 pp	29.2%	28.7%
Nonfamily: householder not living alone	2,378 ±396	6.0% ±1.0 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 39,884
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Households with people under 18	12,153 ±700	30.5% ±1.6 pp	28.6%	29.5%
Households without people under 18	27,731 ±1,272	69.5% ±2.7 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 39,884
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
One-person nonfamily households	12,029 ±1,253	30.2% ±3.1 pp	29.2%	28.7%
Two-person households	13,246 ±1,035	33.2% ±2.5 pp	36.3%	33.8%
Three-person households	6,648 ±1,004	16.7% ±2.5 pp	15.4%	15.3%
Four-person households	5,243 ±681	13.1% ±1.7 pp	11.6%	12.6%
Five-person households	1,984 ±465	5.0% ±1.2 pp	5.0%	5.9%
Six-person households	641 ±277	1.6% ±0.7 pp	1.7%	2.2%
Seven or more people	93 ±77 · low precision	0.2% ±0.2 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: 93,993
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Native	89,598 ±816	95.3% ±0.9 pp	94.2%	85.9%
Foreign born	4,395 ±813	4.7% ±0.9 pp	5.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 88,473
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
English only	83,810 ±1,037	94.7% ±0.9 pp	91.6%	77.7%
Spanish	1,300 ±372	1.5% ±0.4 pp	5.3%	13.6%
French, Haitian, or Cajun	687 ±436 · low precision	0.8% ±0.5 pp · low precision	0.3%	0.7%
German or other West Germanic	376 ±167	0.4% ±0.2 pp	0.3%	0.5%
Russian, Polish, or other Slavic	261 ±179 · low precision	0.3% ±0.2 pp · low precision	0.4%	0.7%
Other Indo-European	1,387 ±494	1.6% ±0.6 pp	0.8%	2.0%
Korean	0 ±33 · low precision	0.0% ±0.0 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	145 ±149 · low precision	0.2% ±0.2 pp · low precision	0.2%	1.1%
Vietnamese	45 ±67 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	12 ±24 · low precision	0.0% ±0.0 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	353 ±260 · low precision	0.4% ±0.3 pp · low precision	0.4%	1.1%
Arabic	21 ±36 · low precision	0.0% ±0.0 pp · low precision	0.1%	0.5%
Other and unspecified	76 ±79 · low precision	0.1% ±0.1 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: 68,878
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Less than high school graduate	1,424 ±364	2.1% ±0.5 pp	9.9%	10.4%
High school graduate or equivalency	5,683 ±769	8.3% ±1.1 pp	28.2%	26.0%
Some college, no degree	9,407 ±1,085	13.7% ±1.6 pp	19.8%	19.1%
Associate’s degree	5,274 ±974	7.7% ±1.4 pp	10.0%	8.8%
Bachelor’s degree	28,359 ±1,326	41.2% ±1.8 pp	19.8%	21.6%
Graduate or professional degree	18,731 ±1,299	27.2% ±1.8 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: 93,127
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Same house	78,983 ±2,229	84.8% ±2.4 pp	87.2%	87.7%
Moved within same county	7,497 ±1,802	8.1% ±1.9 pp	5.5%	6.3%
Moved from a different county in the same state	1,147 ±333	1.2% ±0.4 pp	3.1%	3.1%
Moved from a different state	4,481 ±864	4.8% ±0.9 pp	3.7%	2.3%
Moved from abroad	1,019 ±790 · low precision	1.1% ±0.8 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

4.0% of Mount Pleasant residents (±0.9 percentage points) had no health insurance coverage when surveyed, compared with 9.6% in South Carolina and 8.4% nationally. 83.9% 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	Mount Pleasant	South Carolina	U.S.	Compared with South Carolina
People without health insurance Civilian noninstitutionalized population	4.0% ±0.9 pp	9.6%	8.4%	Lower
Households with a broadband subscription Households	83.9% ±1.7 pp	88.8%	91.0%	Lower
Veterans Civilian population age 18 and older	7.6% ±1.0 pp	8.3%	6.2%	Not statistically different

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 Mount Pleasant . 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 Mount Pleasant housing and cost context or return to the city profile.