Rock Hill, South Carolina demographics

Rock Hill, SC demographics: median age 35.7; 35.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Rock Hill city, South Carolina · Incorporated city · GEOID 4561405. The survey estimates a population of 75,259 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Rock Hill is 35.7 years, with a 90% margin of error of 1.3 years. There are 31,307 households (±895). 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	35.7 ±1.3	40.2 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 75,259
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Under 18	16,365 ±1,053	21.7% ±1.4 pp	21.4%	22.0%
18–34	20,533 ±1,127	27.3% ±1.5 pp	22.0%	22.8%
35–64	27,457 ±1,276	36.5% ±1.7 pp	37.7%	38.0%
65 and older	10,904 ±805	14.5% ±1.1 pp	18.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 75,259
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Male	35,320 ±861	46.9% ±1.1 pp	48.7%	49.5%
Female	39,939 ±858	53.1% ±1.1 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: 75,259
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
White alone	38,648 ±1,575	51.4% ±2.1 pp	63.3%	61.0%
Black or African American alone	28,818 ±1,397	38.3% ±1.9 pp	24.8%	12.2%
American Indian and Alaska Native alone	452 ±246 · low precision	0.6% ±0.3 pp · low precision	0.4%	0.9%
Asian alone	1,373 ±434	1.8% ±0.6 pp	1.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	8 ±12 · low precision	0.0% ±0.0 pp · low precision	0.1%	0.2%
Some other race alone	1,079 ±314	1.4% ±0.4 pp	2.8%	7.1%
Two or more races	4,881 ±773	6.5% ±1.0 pp	6.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 75,259
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Not Hispanic or Latino	70,057 ±925	93.1% ±1.2 pp	92.6%	80.7%
Hispanic or Latino	5,202 ±916	6.9% ±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: 31,307
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Married-couple family	12,034 ±681	38.4% ±1.9 pp	47.1%	46.9%
Other family: male householder, no spouse present	1,364 ±320	4.4% ±1.0 pp	4.5%	5.1%
Other family: female householder, no spouse present	4,678 ±528	14.9% ±1.6 pp	13.4%	12.2%
Nonfamily: householder living alone	10,409 ±991	33.2% ±3.0 pp	29.2%	28.7%
Nonfamily: householder not living alone	2,822 ±487	9.0% ±1.5 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 31,307
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Households with people under 18	9,065 ±645	29.0% ±1.9 pp	28.6%	29.5%
Households without people under 18	22,242 ±1,262	71.0% ±3.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 31,307
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
One-person nonfamily households	10,409 ±991	33.2% ±3.0 pp	29.2%	28.7%
Two-person households	10,507 ±827	33.6% ±2.5 pp	36.3%	33.8%
Three-person households	4,694 ±558	15.0% ±1.7 pp	15.4%	15.3%
Four-person households	3,501 ±478	11.2% ±1.5 pp	11.6%	12.6%
Five-person households	1,419 ±330	4.5% ±1.0 pp	5.0%	5.9%
Six-person households	602 ±182	1.9% ±0.6 pp	1.7%	2.2%
Seven or more people	175 ±107 · low precision	0.6% ±0.3 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: 75,259
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Native	71,130 ±811	94.5% ±1.1 pp	94.2%	85.9%
Foreign born	4,129 ±799	5.5% ±1.1 pp	5.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 70,690
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
English only	65,748 ±993	93.0% ±1.2 pp	91.6%	77.7%
Spanish	3,366 ±787	4.8% ±1.1 pp	5.3%	13.6%
French, Haitian, or Cajun	158 ±86 · low precision	0.2% ±0.1 pp · low precision	0.3%	0.7%
German or other West Germanic	156 ±119 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	47 ±49 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.7%
Other Indo-European	357 ±240 · low precision	0.5% ±0.3 pp · low precision	0.8%	2.0%
Korean	75 ±69 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	95 ±84 · low precision	0.1% ±0.1 pp · low precision	0.2%	1.1%
Vietnamese	275 ±166 · low precision	0.4% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	38 ±46 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	155 ±99 · low precision	0.2% ±0.1 pp · low precision	0.4%	1.1%
Arabic	54 ±74 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.5%
Other and unspecified	166 ±134 · low precision	0.2% ±0.2 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: 49,680
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Less than high school graduate	4,267 ±653	8.6% ±1.3 pp	9.9%	10.4%
High school graduate or equivalency	11,616 ±1,047	23.4% ±2.0 pp	28.2%	26.0%
Some college, no degree	10,960 ±908	22.1% ±1.8 pp	19.8%	19.1%
Associate’s degree	5,380 ±559	10.8% ±1.1 pp	10.0%	8.8%
Bachelor’s degree	10,561 ±794	21.3% ±1.5 pp	19.8%	21.6%
Graduate or professional degree	6,896 ±749	13.9% ±1.5 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: 74,603
Category	Count ± MOE	Share ± MOE (pp)	South Carolina	U.S.
Same house	64,702 ±1,237	86.7% ±1.6 pp	87.2%	87.7%
Moved within same county	4,002 ±728	5.4% ±1.0 pp	5.5%	6.3%
Moved from a different county in the same state	2,901 ±649	3.9% ±0.9 pp	3.1%	3.1%
Moved from a different state	2,791 ±569	3.7% ±0.8 pp	3.7%	2.3%
Moved from abroad	207 ±121 · low precision	0.3% ±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

9.1% of Rock Hill residents (±1.2 percentage points) had no health insurance coverage when surveyed, compared with 9.6% in South Carolina and 8.4% nationally. 91.2% 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	Rock Hill	South Carolina	U.S.	Compared with South Carolina
People without health insurance Civilian noninstitutionalized population	9.1% ±1.2 pp	9.6%	8.4%	Not statistically different
Households with a broadband subscription Households	91.2% ±1.1 pp	88.8%	91.0%	Higher
Veterans Civilian population age 18 and older	7.4% ±1.1 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 Rock Hill . 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 Rock Hill housing and cost context or return to the city profile.