Summit, SC

Town in Lexington County, SC, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

533

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

55.4

years ∙ half population younger than 55.4, half older

Diversity Index

28%

chance two random people differ in race and ethnicity

Nativity

2.4%

foreign-born population

97.6%Native

2.4% Foreign-born

Geographic Context

Location, size, and surroundings

About

Summit is a town within Lexington County, South Carolina, United States.

Location

Town in Lexington County, SC, US

Co-ordinates

DEC33.924636° N, 81.422583° W

DMS33° 55′ 28.69″ N, 81° 25′ 21.30″ W

Population Density & area

357.7/sq mi (138.1/km²)

Total Area

1.49 sq mi (3.86 km²)

Land Area

1.49 sq mi (3.86 km²) · 100%

Water Area

0 sq mi (0 km²) · 0%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

49% male

Male 49%

Female 51%

males per 100 females

Summit 96

Lexington County 95.2

South Carolina 94.8

Nativity

2.4%

foreign-born population

97.6%Native

2.4% Foreign-born

% Foreign-born

Summit 2.4%

Lexington County 6.5%

South Carolina 5.8%

Age Distribution

How the population is spread across age groups

Median Age

55.4

years ∙ half population younger than 55.4, half older

Summit

55.4

Lexington County

39.8

South Carolina

40.2

Dependency ratio

43.7

dependents per 100 working-age adults

Summit 43.7

Lexington County 66.8

South Carolina 67.5

AGE DISTRIBUTION

Distribution of age group

Median age

	Summit	Lexington County	South Carolina
Age Group
Children (Under 18)	9.8%	23%	21.4%
Working age (18-64)	69.6%	59.9%	59.7%
Senior (65+)	20.6%	17.1%	18.9%
Dependency ratio
Total dependency ratio	43.7	66.8	67.5
Child dependency ratio	14	38.3	35.9
Old-age dependency ratio	29.6	28.5	31.6

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

83.9%

Black

12.2%

Asian

Hispanic

1.5%

Other

2.4%

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

28%

chance two random people differ in race and ethnicity

Summit 28%

Lexington County 47.5%

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 Summit population

	Summit	Lexington County	South Carolina
Hispanic or Latino	1.5%	7.9%	7.4%
Mexican	0.8%	3.8%	3.4%
Puerto Rican	0%	0.9%	1%
Cuban	0%	0.4%	0.3%
Other Hispanic / Latino	0.8%	2.8%	2.7%
Not Hispanic or Latino	98.5%	92.1%	92.6%
One race	96.2%	88.3%	88.9%
White	83.9%	70.3%	61.9%
Black or African American	12.2%	15.1%	24.6%
American Indian and Alaska Native	0.2%	0.1%	0.2%
Asian	0%	2.2%	1.7%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0%	0.5%	0.5%
Two or more races (Multiracial)	2.3%	3.8%	3.7%

Household & Families Composition

Household size, type, and family structure

Household structure

87.3% family

Family 87.3%

Non family 12.7%

% family households

Summit 87.3%

Lexington County 67.7%

South Carolina 65%

Average household size

2.41

persons per household

Summit

2.41

Lexington County

2.48

South Carolina

2.44

Household & Family COMPOSITION

Households

Percentage of Summit population

	Summit	Lexington County	South Carolina
Total households	221	121,964	2,117,989
Average houshold size	2.41	2.48	2.44
Family households	193	82,536	1,377,369
Average family size	2.56	3	3.01
Married couple family	159	61,788	998,170
Other families	34	20,748	379,199
Male householder	5	6,086	95,077
Female householder	29	14,662	284,122
Non-family households	28	39,428	740,620
One-person households	25	32,469	618,603
Male householder	17	14,199	273,409
Senior (65+) living alone	5	4,405	86,486
Female householder	8	18,270	345,194
Senior (65+) living alone	6	9,070	172,484
Other living arrangements	3	6,959	122,017

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

226

housing units

Summit 226

Lexington County 132,916

South Carolina 2,443,039

Occupancy status

97.8% occupied

Occupied 97.8%

Vacant 2.2%

vacancy rate

Summit 2.2%

Lexington County 8.2%

South Carolina 13.3%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

66.8%

Single family houses

66.8%

Apartments in multi-unit structures

1.3%

Mobile homes

31.4%

Boat, RV, van, etc

0.4%

Median Year Built

1994

Half of houses were built before 1994, and half after.

Historic ∙ 1939 or earlier

13.3%

Postwar & mid-century ∙ 1940 - 1969

5.7%

Late 20th century ∙ 1970 - 1999

41.1%

Modern ∙ 2000 or later

39.8%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Summit	Lexington County	South Carolina
Rooms per unit
Median rooms	5.1	6	5.7
1–3 rooms	0.4%	5.5%	9.1%
4–6 rooms	79.2%	54.1%	55.3%
7+ rooms	20.4%	40.4%	35.5%
Bedrooms
No bedroom / studio	0.4%	0.8%	1.5%
1 bedroom	0%	3.3%	5.7%
2 bedrooms	26.5%	18.4%	22.5%
3 bedrooms	58.4%	49.7%	47.5%
4+ bedrooms	14.6%	27.7%	22.8%
At a glance
Median year built	1994	1994	1993
Total housing units	226	132,916	2,443,039

Occupancy Profile

Who is inside and how they use it

Homeownership

88.2% owners

Renter-occupied 11.8%

Owner-occupied 88.2%

homeownership rate

Summit 88.2%

Lexington County 77.4%

South Carolina 71.9%

Average household size

2.33

Owner-occupied

3.04

Renter-occupied

owner-occupied average size

Summit 2.33

Lexington County 2.51

South Carolina 2.49

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Summit	Lexington County	South Carolina
Total occupied units	221	121,964	2,117,989
Year moved in
2020 or later	12.2%	23.7%	25.6%
2010 to 2019	27.6%	39.8%	39.4%
2000 to 2009	46.6%	16.8%	16%
1999 or earlier	13.6%	19.7%	19%
Occupants per room
1.00 or fewer	99.5%	98.1%	98%
1.01 to 1.50	0%	1.6%	1.4%
1.51 or more	0.5%	0.3%	0.6%
Vehicles availability
No vehicles	1.4%	4.5%	5.7%
1 vehicle	8.6%	27.6%	32.2%
2 vehicles	59.7%	41.4%	38.5%
3 or more vehicles	30.3%	26.4%	23.6%
House heating fuel used
Gas	8.6%	28.6%	27.1%
Electricity	91.4%	69.3%	70.8%
Solar	0%	0.3%	0.2%
Fuel oil, kerosene etc	0%	0.4%	0.5%
All other fuels	0%	0.8%	0.6%
No fuel used	0%	0.6%	0.7%
Selected characteristics
Lacking complete plumbing	0%	0.4%	0.3%
Lacking complete kitchen	0.5%	0.9%	0.6%
No telephone service available	0%	0.9%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$202,000

owner-occupied units

Median value(USD)

Summit

$202,000

Lexington County

$234,500

South Carolina

$259,000

Housing Cost Burden

7.2%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

7.2%

Owners without a mortgage

3.1%

Renters

33.3%

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

	Summit	Lexington County	South Carolina
Property value
Median Value	$202,000	$234,500	$259,000
Under $100,000	15.4%	13.1%	16.8%
$100,000 - $200,000	33.3%	25.4%	19.5%
$200,000 - $300,000	36.9%	28%	21.8%
$300,000 - $500,000	6.2%	23.1%	25.5%
$500,000 - $1,000,000	7.7%	8.3%	12.7%
$1,000,000 and more	0.5%	2.1%	3.7%
Owner-occupied households
With a mortgage	49.7%	63%	57.1%
Without a mortgage	50.3%	37%	42.9%
Median monthly owner costs
With a mortgage	$1,202	$1,403	$1,529
Without a mortgage	$300	$422	$448
Gross rent
Median rent	$930	$1,178	$1,180

Education Profile

How educated is the community and how education pays off

Adults with a college degree

12.6%

of adults 25+ with a bachelor's degree or higher

Summit 12.6%

Lexington County 34.1%

South Carolina 32.1%

Adults without a high school diploma

16%

of adults (25+) without a high school diploma

Summit 16%

Lexington County 8%

South Carolina 9.9%

School Enrollment

Who is enrolled in school and at what level

School enrollment

population (age 3+) enrolled in school

Nursery / Preschool

2.9%

K–12

68.1%

College / Undergraduate

13%

Graduate / Professional

15.9%

College-going rate (18-24 yr olds)

10%

of 18-24-year-olds in college or graduate school

Summit

10%

Lexington County

31.5%

South Carolina

37.5%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Summit	Lexington County	South Carolina
Total enrolled (age 3+)	69	70,835	1,202,992
Nursery / preschool	2.9%	5.8%	5.2%
K–12	68.1%	74.1%	69.7%
Kindergarten	0%	5.6%	5.5%
Elementary: Grades 1–4	13%	21.8%	20.6%
Elementary: Grades 5–8	10.1%	22.9%	21.4%
High School: Grades 9–12	44.9%	23.8%	22.2%
College or graduate school	29%	20.2%	25.1%
College, undergraduate	13%	15.1%	20%
Graduate, professional school	15.9%	5.1%	5%
College-going rate · 18-24 yr olds	10%	31.5%	37.5%
School type
Public school	100%	87%	82.7%
Private school	0%	13%	17.3%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

421

population 25 years and over

Total adults (25+)

Less than 9th grade

1.7%

9th-12th, no diploma

14.3%

HS graduate

23%

Some college no degree

41.3%

Associates degree

7.1%

Bachelors degree

7.8%

Graduate or professional degree

4.8%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

42.9% · 57.1%

9th-12th, no diploma

66.7% · 33.3%

HS graduate

58.8% · 41.2%

Some college no degree

37.4% · 62.6%

Associates degree

66.7% · 33.3%

Bachelors degree

36.4% · 63.6%

Graduate or professional degree

30% · 70%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Summit	Lexington County	South Carolina
Population (25+)	421	211,803	3,677,078
Less than 9th grade	1.7%	2.6%	3.1%
9th–12th, no diploma	14.3%	5.4%	6.8%
High school diploma or GED	23%	26.8%	28.2%
Some college, no degree	41.3%	20.8%	19.8%
Associate's degree	7.1%	10.3%	10%
Bachelor's degree or higher	12.6%	34.1%	32.1%
Bachelor's degree	7.8%	20.9%	19.8%
Graduate or professional	4.8%	13.1%	12.3%
High School or higher	84.1%	92%	90.1%

Earnings by education level

percentage as applicable

Median Earnings

$44,167

Median earnings for adults 25+, by level

Less than HS graduate

$—

HS graduate

$46,818

Some college or associates

$34,561

Bachelors degree

$54,167

Graduate or professional degree

$46,250

Poverty Rate

5.7%

for ages 25+, with bachelors degree or higher

Less than HS graduate

4.5%

HS graduate

Some college or associates

3.9%

Bachelors degree or higher

5.7%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Summit	Lexington County	South Carolina
Median earnings
Population 25+, with earnings	$44,167	$50,780	$47,658
Less than high school graduate	$—	$30,704	$30,223
High school graduate (includes equivalency)	$46,818	$40,191	$37,196
Some college or associate's degree	$34,561	$46,735	$44,160
Bachelor's degree	$54,167	$64,305	$61,860
Graduate or professional degree	$46,250	$72,061	$73,671
Poverty rates
Less than high school graduate	4.5%	28.9%	28.4%
High school graduate (includes equivalency)	1%	12.6%	15.6%
Some college or associate's degree	3.9%	8.4%	10.2%
Bachelor's degree or higher	5.7%	3.7%	4.7%

Insights for Summit, by topic

Income By year By race By age By gender

Population By year By race By age By gender

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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