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Rockville, SC
Key Indicators
A quick look at key numbers
Population
121
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
51.3
years ∙ half population younger than 51.3, half older
Diversity Index
14%
chance two random people differ in race and ethnicity
Nativity
1.7%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Rockville is a town within Charleston County, South Carolina, United States.
Co-ordinates
DEC32.602843° N, 80.191385° W
DMS32° 36′ 10.23″ N, 80° 11′ 28.99″ W
Population Density & area
285.4/sq mi
(110.3/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
60.3%
male
Male
60.3%
Female
39.7%
males per 100 females
Rockville
152.1
Charleston County
94.1
South Carolina
94.8
Nativity
1.7%
foreign-born population
% Foreign-born
Rockville
1.7%
Charleston County
6.7%
South Carolina
5.8%
Age Distribution
How the population is spread across age groups
Median Age
51.3
years ∙ half population younger than 51.3, half older
Dependency ratio
142
dependents per 100 working-age adults
Rockville
142
Charleston County
59.6
South Carolina
67.5
AGE DISTRIBUTION
Distribution of age group
Median age
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 20.7% | 19.5% | 21.4% |
| Working age (18-64) | 41.3% | 62.6% | 59.7% |
| Senior (65+) | 38% | 17.9% | 18.9% |
| Dependency ratio | |||
| Total dependency ratio | 142 | 59.6 | 67.5 |
| Child dependency ratio | 50 | 31.1 | 35.9 |
| Old-age dependency ratio | 92 | 28.5 | 31.6 |
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares
Race & Ethnicity
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.
Diversity Index
14%
chance two random people differ in race and ethnicity
Rockville
14%
Charleston County
52.6%
South Carolina
54.9%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.
RACIAL & ETHNIC COMPOSITION
Race & Ethnicity
Percentage of Rockville population
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Hispanic or Latino | 1.7% | 7.2% | 7.4% |
| Mexican | 0% | 3.5% | 3.4% |
| Puerto Rican | 0% | 0.5% | 1% |
| Cuban | 1.7% | 0.3% | 0.3% |
| Other Hispanic / Latino | 0% | 2.9% | 2.7% |
| Not Hispanic or Latino | 98.3% | 92.8% | 92.6% |
| One race | 94.2% | 89.4% | 88.9% |
| White | 92.6% | 64.5% | 61.9% |
| Black or African American | 0% | 22.7% | 24.6% |
| American Indian and Alaska Native | 0% | 0.1% | 0.2% |
| Asian | 0% | 1.8% | 1.7% |
| Native Hawaiian and Other Pacific Islander | 0% | 0.1% | 0% |
| Some Other Race | 1.7% | 0.4% | 0.5% |
| Two or more races (Multiracial) | 4.1% | 3.4% | 3.7% |
Household & Families Composition
Household size, type, and family structure
Household structure
70.7%
family
Family
70.7%
Non family
29.3%
% family households
Rockville
70.7%
Charleston County
58%
South Carolina
65%
Average household size
2.09
persons per household
Household & Family COMPOSITION
Households
Percentage of Rockville population
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Total households | 58 | 178,975 | 2,117,989 |
| Average houshold size | 2.09 | 2.29 | 2.44 |
| Family households | 41 | 103,745 | 1,377,369 |
| Average family size | 2.54 | 2.95 | 3.01 |
| Married couple family | 38 | 78,992 | 998,170 |
| Other families | 3 | 24,753 | 379,199 |
| Male householder | 0 | 6,835 | 95,077 |
| Female householder | 3 | 17,918 | 284,122 |
| Non-family households | 17 | 75,230 | 740,620 |
| One-person households | 17 | 58,945 | 618,603 |
| Male householder | 6 | 26,414 | 273,409 |
| Senior (65+) living alone | 0 | 7,034 | 86,486 |
| Female householder | 11 | 32,531 | 345,194 |
| Senior (65+) living alone | 7 | 13,993 | 172,484 |
| Other living arrangements | 0 | 16,285 | 122,017 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
71
housing units
Rockville
71
Charleston County
209,803
South Carolina
2,443,039
Occupancy status
81.7%
occupied
Occupied
81.7%
Vacant
18.3%
vacancy rate
Rockville
18.3%
Charleston County
14.7%
South Carolina
13.3%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
93%
Single family houses
Median Year Built
1974
Half of houses were built before 1974, and half after.
Note: Median year built reflects occupied units only; distribution includes all units.
Housing Characteristics
Units, rooms & bedrooms
Physical characteristics of housing units
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 6 | 5.6 | 5.7 |
| 1–3 rooms | 8.4% | 14.3% | 9.1% |
| 4–6 rooms | 52.1% | 50.4% | 55.3% |
| 7+ rooms | 39.5% | 35.2% | 35.5% |
| Bedrooms | |||
| No bedroom / studio | 0% | 2.2% | 1.5% |
| 1 bedroom | 8.5% | 10.2% | 5.7% |
| 2 bedrooms | 26.8% | 24.4% | 22.5% |
| 3 bedrooms | 52.1% | 39.2% | 47.5% |
| 4+ bedrooms | 12.7% | 24.1% | 22.8% |
| At a glance | |||
| Median year built | 1974 | 1992 | 1993 |
| Total housing units | 71 | 209,803 | 2,443,039 |
Occupancy Profile
Who is inside and how they use it
Homeownership
91.4%
owners
Renter-occupied
8.6%
Owner-occupied
91.4%
homeownership rate
Rockville
91.4%
Charleston County
63.9%
South Carolina
71.9%
Average household size
2.09
Owner-occupied
2
Renter-occupied
owner-occupied average size
Rockville
2.09
Charleston County
2.4
South Carolina
2.49
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Total occupied units | 58 | 178,975 | 2,117,989 |
| Year moved in | |||
| 2020 or later | 13.8% | 31.7% | 25.6% |
| 2010 to 2019 | 24.1% | 40.7% | 39.4% |
| 2000 to 2009 | 31% | 13.1% | 16% |
| 1999 or earlier | 31% | 14.5% | 19% |
| Occupants per room | |||
| 1.00 or fewer | 100% | 98.4% | 98% |
| 1.01 to 1.50 | 0% | 1.2% | 1.4% |
| 1.51 or more | 0% | 0.5% | 0.6% |
| Vehicles availability | |||
| No vehicles | 1.7% | 5.9% | 5.7% |
| 1 vehicle | 34.5% | 36.3% | 32.2% |
| 2 vehicles | 36.2% | 40.4% | 38.5% |
| 3 or more vehicles | 27.6% | 17.4% | 23.6% |
| House heating fuel used | |||
| Gas | 5.2% | 22.7% | 27.1% |
| Electricity | 93.1% | 75.9% | 70.8% |
| Solar | 0% | 0.5% | 0.2% |
| Fuel oil, kerosene etc | 1.7% | 0.1% | 0.5% |
| All other fuels | 0% | 0.2% | 0.6% |
| No fuel used | 0% | 0.5% | 0.7% |
| Selected characteristics | |||
| Lacking complete plumbing | 0% | 0.3% | 0.3% |
| Lacking complete kitchen | 0% | 0.4% | 0.6% |
| No telephone service available | 0% | 0.6% | 0.8% |
Housing Value
What owner-occupied units are worth
Median home value
$459,100
owner-occupied units
Housing Cost Burden
70%
of homeowners with a mortgage are cost-burdened
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.
Financial characteristics
Property value and housing costs
Tenure, crowding, and utilities
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Property value | |||
| Median Value | $459,100 | $489,100 | $259,000 |
| Under $100,000 | 0% | 5.6% | 16.8% |
| $100,000 - $200,000 | 0% | 6.6% | 19.5% |
| $200,000 - $300,000 | 20.8% | 11.6% | 21.8% |
| $300,000 - $500,000 | 37.7% | 27.6% | 25.5% |
| $500,000 - $1,000,000 | 30.2% | 32% | 12.7% |
| $1,000,000 and more | 11.3% | 16.6% | 3.7% |
| Owner-occupied households | |||
| With a mortgage | 56.6% | 65.5% | 57.1% |
| Without a mortgage | 43.4% | 34.5% | 42.9% |
| Median monthly owner costs | |||
| With a mortgage | $2,688 | $2,167 | $1,529 |
| Without a mortgage | $481 | $648 | $448 |
| Gross rent | |||
| Median rent | $2,083 | $1,620 | $1,180 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
63.7%
of adults 25+ with a bachelor's degree or higher
Rockville
63.7%
Charleston County
50.3%
South Carolina
32.1%
Adults without a high school diploma
1.1%
of adults (25+) without a high school diploma
Rockville
1.1%
Charleston County
6.5%
South Carolina
9.9%
School Enrollment
Who is enrolled in school and at what level
School enrollment
17
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
0%
of 18-24-year-olds in college or graduate school
Enrollment & school type
Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Total enrolled (age 3+) | 17 | 89,502 | 1,202,992 |
| Nursery / preschool | 0% | 6.8% | 5.2% |
| K–12 | 94.1% | 63.1% | 69.7% |
| Kindergarten | 0% | 5.6% | 5.5% |
| Elementary: Grades 1–4 | 29.4% | 18.3% | 20.6% |
| Elementary: Grades 5–8 | 52.9% | 19.9% | 21.4% |
| High School: Grades 9–12 | 11.8% | 19.3% | 22.2% |
| College or graduate school | 5.9% | 30.1% | 25.1% |
| College, undergraduate | 5.9% | 21.7% | 20% |
| Graduate, professional school | 0% | 8.3% | 5% |
| College-going rate · 18-24 yr olds | 0% | 45% | 37.5% |
| School type | |||
| Public school | 41.2% | 80.8% | 82.7% |
| Private school | 58.8% | 19.2% | 17.3% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
91
population 25 years and over
Attainment by gender
Male vs Female
Adults (25+) · Share within each education level
* The Census Bureau did not publish education attainment by gender data for Rockville due to an insufficient sample size to produce reliable estimates.
Educational Attainment Overview
Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Population (25+) | 91 | 303,597 | 3,677,078 |
| Less than 9th grade | 0% | 2.3% | 3.1% |
| 9th–12th, no diploma | 1.1% | 4.2% | 6.8% |
| High school diploma or GED | 11% | 18% | 28.2% |
| Some college, no degree | 23.1% | 17.3% | 19.8% |
| Associate's degree | 1.1% | 7.8% | 10% |
| Bachelor's degree or higher | 63.7% | 50.3% | 32.1% |
| Bachelor's degree | 45.1% | 30.5% | 19.8% |
| Graduate or professional | 18.7% | 19.8% | 12.3% |
| High School or higher | 98.9% | 93.5% | 90.1% |
Earnings by education level
percentage as applicable
Median Earnings
$66,875
Median earnings for adults 25+, by level
Poverty Rate
3.4%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| Rockville | Charleston County | South Carolina | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $66,875 | $56,128 | $47,658 |
| Less than high school graduate | $— | $33,810 | $30,223 |
| High school graduate (includes equivalency) | $— | $38,363 | $37,196 |
| Some college or associate's degree | $78,036 | $45,583 | $44,160 |
| Bachelor's degree | $— | $70,425 | $61,860 |
| Graduate or professional degree | $61,250 | $80,674 | $73,671 |
| Poverty rates | |||
| Less than high school graduate | 100% | 23.2% | 28.4% |
| High school graduate (includes equivalency) | 0% | 14.7% | 15.6% |
| Some college or associate's degree | 0% | 9.7% | 10.2% |
| Bachelor's degree or higher | 3.4% | 5% | 4.7% |
About Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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