Town · South Carolina
Johnston, South Carolina
Johnston, town, in Edgefield County, South Carolina. Johnston had 2,233 residents on July 1, 2025 by the Census Bureau's estimate, up 11.7% since 2020; the 2020 Census counted 1,997 and the ACS 2020-2024 5-year estimates put it at 2,132 (±480). GEOID 4537150.
Residents, July 2025 estimate
2,233
Census Bureau estimate (no margin published)
2020 Census count: 1,997 · ACS 2020-2024: 2,132 ±480
Median household income
$34,412
±$12,067 (90% margin)
South Carolina: $69,324
Median home value
$106,600
±$40,904 (90% margin)
South Carolina: $259,000
Median gross rent
$491
±$278 (90% margin)
South Carolina: $1,180
Where is Johnston and what county is it in?
Johnston is a town in Edgefield County, South Carolina. It covers 2.6 square miles of land, 762 residents per square mile in 2020.
Johnston is in the Augusta-Richmond County, GA-SC metropolitan statistical area, which takes in 7 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Johnston, and is it growing?
The Census Bureau estimates that 2,233 people lived in Johnston on July 1, 2025, up 11.7% since 2020, faster than South Carolina (+8.8%). The 2020 Census counted 1,997 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 2,132 (±480).
| Measure | Johnston | Edgefield County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 2,132 ±480 | 27,476 | no clear change |
| Households | 1,002 ±209 | 9,768 | no clear change |
| Average household size | 2.13 ±0.30 | 2.56 | no clear change |
| Housing units | 1,160 ±224 | 11,513 | no clear change |
Johnston's population since 2000
From 2,336 in 2000 to 2,233 in 2025: down 4.4%. The 2000, 2010 and 2020 figures are census counts, each for Johnston as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Johnston?
The median resident of Johnston is 46.9 years old; 20.8% are under 18 and 30.4% are 65 or older. The largest group is non-Hispanic Black residents at 62.4%, then non-Hispanic white residents at 29.0%.
| Measure | Johnston | Edgefield County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.9 ±10.2 | 41.6 | no clear change |
| Under 18 years | 20.8% ±7.9 pts | 16.6% | – |
| 65 years and over | 30.4% ±10.6 pts | 19.7% | – |
| Male | 44.6% ±5.8 pts | 54.4% | – |
| Hispanic or Latino (any race) | 2.5% ±4.0 pts | 7.2% | – |
| White alone, not Hispanic | 29.0% ±10.1 pts | 56.5% | no clear change |
| Black or African American alone, not Hispanic | 62.4% ±11.3 pts | 30.1% | no clear change |
| Asian alone, not Hispanic | 0.3% ±0.8 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.5 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.5% ±3.5 pts | 5.0% | – |
| Some other race alone, not Hispanic | 1.0% ±1.6 pts | 0.8% | – |
| Born outside the United States | 3.1% ±4.1 pts | 4.0% | – |
| Speak a language other than English at home (age 5+) | 5.0% ±6.1 pts | 5.0% | – |
| Civilian veterans (age 18+) | 8.3% ±4.7 pts | 8.3% | – |
| With a disability | 23.5% ±6.3 pts | 14.8% | – |
| No health insurance coverage | 11.9% ±4.5 pts | 9.0% | no clear change |
| High school graduate or higher (age 25+) | 82.9% ±6.7 pts | 83.6% | – |
| Bachelor's degree or higher (age 25+) | 14.9% ±8.0 pts | 23.3% | no clear change |
| Graduate or professional degree (age 25+) | 9.6% ±6.7 pts | 8.4% | – |
| Lived in the same house a year earlier | 94.7% ±4.0 pts | 87.3% | – |
| Moved from another state in the past year | 0.7% ±1.1 pts | 3.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Johnston earn?
Half of Johnston's 1,002 households earn less than $34,412 a year (±$12,067), against $73,029 in Edgefield County and $69,324 in South Carolina. In 2015-2019 it was $39,969 in 2024 dollars; the margins of error cannot tell the two periods apart. 32.7% of residents live below the poverty line.
| Measure | Johnston | Edgefield County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $34,412 ±$12,067 | $73,029 | no clear change |
| Mean household income | $49,440 ±$9,282 | $86,544 | – |
| Per capita income | $25,133 ±$4,223 | $33,147 | no clear change |
| People below the poverty line | 32.7% ±12.3 pts | 17.8% | no clear change |
| Children under 18 below the poverty line | 39.1% ±33.0 pts | 24.9% | – |
| Households receiving SNAP | 28.5% ±10.1 pts | 12.3% | – |
| Households with a computer | 83.7% ±7.0 pts | 92.3% | – |
| Households with a broadband subscription | 70.8% ±10.0 pts | 80.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Johnston?
Owners occupy 63.1% of Johnston's occupied homes and renters 36.9%. The median owner-occupied home is valued at $106,600 by its owner (±$40,904). The median renter pays $491 a month including utilities, and 37.3% of renters pay 35% or more of their income on rent.
| Measure | Johnston | Edgefield County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $106,600 ±$40,904 | $202,700 | no clear change |
| Median gross rent | $491 ±$278 | $720 | −$343 |
| Renters paying 35% or more of income on rent | 37.3% ±21.5 pts | 38.6% | no clear change |
| Median monthly owner costs, with a mortgage | $1,073 ±$284 | $1,346 | – |
| Owner-occupied homes | 63.1% ±11.8 pts | 80.1% | no clear change |
| Renter-occupied homes | 36.9% ±11.8 pts | 19.9% | – |
| Housing units | 1,160 ±224 | 11,513 | no clear change |
| Homeowner vacancy rate | 0.0% ±6.9 pts | 0.2% | – |
| Rental vacancy rate | 0.0% ±11.4 pts | 4.9% | – |
| Single-family detached homes | 77.2% ±8.5 pts | 67.7% | – |
| Mobile homes | 0.6% ±1.2 pts | 24.7% | – |
| Built 2020 or later | 0.0% ±3.8 pts | 4.2% | – |
| Built 2010 to 2019 | 1.5% ±1.5 pts | 10.4% | – |
| Built 1939 or earlier | 15.3% ±10.1 pts | 6.2% | – |
| Households with no vehicle | 16.7% ±7.4 pts | 7.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Johnston work and get to work?
84.7% of Johnston's workers drive alone. The average trip to work takes 28.5 minutes.
| Measure | Johnston | Edgefield County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 42.8% ±8.0 pts | 53.3% | – |
| Unemployment rate | 8.6% ±8.2 pts | 4.8% | – |
| Drove alone to work | 84.7% ±10.0 pts | 79.4% | – |
| Carpooled | 11.5% ±10.0 pts | 10.8% | – |
| Public transportation | 0.0% ±6.4 pts | 1.5% | – |
| Walked | 0.0% ±6.4 pts | 1.9% | – |
| Worked from home | 3.8% ±3.7 pts | 6.2% | – |
| Mean travel time to work | 28.5 min ±4.6 | 25.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Johnston?
No census tract lies mostly in Johnston; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9703Edgefield County | 4,799 | $45,833 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Johnston) · Census block assignment files
How does Johnston compare with other places in South Carolina?
By the Census Bureau's July 2025 estimates, Johnston is the 7,304th-most populous of the 19,476 U.S. incorporated places that have one and the 108th-most populous of 271 in South Carolina.
Johnston ranks 227th of 248 places in South Carolina with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 108th | 271 |
| Growth 2020-2025 (PEP) | 35th | 149 |
| Residents per square mile | 169th | 261 |
| Median household income | 227th | 248 |
| Per capita income | 180th | 259 |
| Median home value | 215th | 248 |
| Median gross rent | 233rd | 235 |
| Poverty rate | 30th | 214 |
| Bachelor's degree or higher | 186th | 226 |
| Median age | 46th | 261 |
| Owner-occupied share | 149th | 258 |
| Travel time to work | 57th | 261 |
Johnston's figures with every place in South Carolina (CSV)
Every place in South Carolina, sortable · Compare Johnston with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Johnston?
22 of the 57 figures for Johnston on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Johnston are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Johnston.