Johnston, SC demographics:
population, income, and more

Total population
2,132
-15.3% year-over-year change
Median household income
$34,412/yr
-1.6% year-over-year change
Housing units
1,160
-2.4% year-over-year change

Johnston population

How many people live in Johnston

Johnston is home to 2,132 residents, according to the most recent Census data. Gender-wise, 44.6% of Johnston locals are male, and 55.4% are female.

Total population
2,132
-15.3% year-over-year change
Gender ratio
Male
44.6%
950
Female
55.4%
1,182
Value Percent YoY change
Male 950 44.6% -13.2%
Female 1,182 55.4% -17.0%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Johnston is 47, with the population distributed as follows: about 17.9% are children under 15, then 7.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.4% of the population, while another 23.9% fall into the 45 to 64 bracket. Finally, around 30.4% are 65 or older.

Median age
46.9
Age breakdown
Under 15
17.9%
15 to 24
7.4%
25 to 44
20.4%
45 to 64
23.9%
Over 65
30.4%
Value Percent YoY change
Under 15 381 17.9% -23.3%
15 to 24 158 7.4% -29.8%
25 to 44 435 20.4% -14.2%
45 to 64 510 23.9% -14.6%
Over 65 648 30.4% -6.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Johnston, 96.4% of the population are US-born citizens, while 0.5% have gained naturalized citizenship. At the same time, 3.1% of residents are non-citizens. As for race, 29% of locals are Caucasian, 62.4% are African American and 1.6% have Asian roots. There’s also a share of 5.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
96.4%
Non-U.S.-born citizens
0.5%
Non-citizens
3.1%
Value Percent YoY change
U.S.-born citizens 2,055 96.4% -15.2%
Non-U.S.-born citizens 10 0.5% 42.9%
Non-citizens 67 3.1% -24.7%
Racial breakdown
White
29%
Black or African American
62.4%
American Indian and Alaska Native
0.2%
Asian
1.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.8%
Other
1%
Value Percent
White 619 29%
Black or African American 1,331 62.4%
American Indian and Alaska Native 4 0.2%
Asian 33 1.6%
Two or more races 124 5.8%
Other 21 1%

Households in Johnston

A peek inside Johnston households

Johnston has 1,002 households, with an average of 2 members in each. Of these, 48.5% are families, while the remaining 51.5% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,002
-5.7% year-over-year change
Average people per household
2
Non-family households
516
Family households
486
Value Percent YoY change
Non-family households 516 51.5% 7.3%
Family households 486 48.5% -16.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Johnston

The housing landscape of Johnston

Johnston's housing consists of 1,160 units, with 77.2% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 0.6% of the housing landscape.

Housing units
1,160
-2.4% year-over-year change
Housing types
Value Percent
1 unit, detached 896 77.2%
2 units 4 0.3%
3 or 4 units 34 2.9%
5 to 9 units 193 16.6%
10 to 19 units 21 1.8%
20 to 49 units 5 0.4%
Mobile home 7 0.6%
Homes built since 2020
0
% year-over-year change

The age of buildings in Johnston

In Johnston, the median construction year is 1967. About 15.3% of homes were built before the 1940s, with another 5.2% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 177 15.3% -11.5%
Built between 1940 and 1949 60 5.2% 66.7%
Built between 1950 and 1959 194 16.7% 9.0%
Built between 1960 and 1969 208 17.9% -15.4%
Built between 1970 and 1979 174 15% -5.4%
Built between 1980 and 1989 199 17.2% 19.9%
Built between 1990 and 1999 107 9.2% -13.7%
Built between 2000 and 2009 24 2.1% -40.0%
Built between 2010 and 2019 17 1.5% 13.3%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Johnston occupancy rates

Out of the 1,002 occupied housing units in Johnston, 63.1% are owner-occupied, while 36.9% are lived in by tenants. Meanwhile, 13.6% of all homes on the local market sit vacant.

Occupied housing units
1,002
-5.7% year-over-year change
Occupancy breakdown
Renter occupied
370
Owner occupied
632
Value Percent YoY
change
Renter occupied 370 36.9% -15.3%
Owner occupied 632 63.1% 1.0%
Unoccupied housing units
13.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Johnston housing costs

Housing costs in Johnston come to a median of $534 per month, while tenants specifically pay a median gross rent of $491.

Median housing costs per month
$534/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Johnston
$491/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Johnston

Johnston education at a glance

About 56.5% of the population in Johnston went to high school, while 10.1% pursued college studies. Another 12.4% earned an associate degree and 5% hold a bachelor’s. Meanwhile, 9.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 117 6.9% -33.1%
High school diploma 955 56.5% -14.4%
College diploma 171 10.1% -24.3%
Associate degree 209 12.4% 20.1%
Bachelor's degree 84 5% -11.6%
Graduate degree 153 9.1% 0.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Johnston

How much people earn in Johnston

The average annual household income in Johnston was $49,440 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1.9% change from the previous year. At the same time, the median income stood at $34,412, reflecting a -1.6% shift over the same period.

Average household income in Johnston
$49,440/year
1.9% year-over-year change
Median household income in Johnston
$34,412/year
-1.6% year-over-year change

Johnston income by age

In Johnston, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $34,142. Those with someone between 45 and 64 in charge, often well established professionally, earn $60,094 overall. Overall, 67.2% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $34,142 N/A
45 - 64 $60,094 28.7%
Over 65 $23,333 -23.9%
Above poverty level
1,420
Below poverty level
694
Value Percent YoY
change
Above poverty level 1,420 67.2% -21.8%
Below poverty level 694 32.8% 2.1%

Average renter income in Johnston

To get a better sense of what renters earn on average in Johnston, their median household income was $15,518 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 38%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$15,518
Rent-to-income ratio
38%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Johnston

Workforce and job types in Johnston

The job market in Johnston is powered by 680 working residents, spread across a range of industries and roles. 68.2% of the working population are employed in professional or administrative positions, while 31.8% are in hands-on or service-based jobs. Also, 12.5% run their own businesses, 57.4% are employed by private companies, and 26.3% work in the public sector.

Workforce demographics

Working population
680
-24.4% year-over-year change
White collar
464
Blue collar
216
Value Percent YoY change
White collar 464 68.2% -14.9%
Blue collar 216 31.8% -39.1%
Employer type
Self employees
12.5%
Private companies
57.4%
Governmental workers
26.3%
Not for profit companies
3.8%
Value Percent YoY change
Self employees 85 12.5% -1.2%
Private companies 390 57.4% -34.8%
Governmental workers 179 26.3% 0.0%
Not for profit companies 26 3.8% -29.7%
Unemployment rate
8.6%
-13.5% year-over-year change

Available workforce

The unemployment rate in Johnston stands at 8.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Johnston

How people get around in Johnston

Means of transportation
Value Percent YoY change
Car 654 96.2% -21.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Johnston by zipcode?

Zipcode Population Number of households Median income Average income
29832 5,074 2,154 $42,500 $60,676

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FAQs about Johnston demographics 

What is the total population of Johnston?

Johnston has a total population of 2,132 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -15.3% compared to a year ago.

What is the gender ratio in Johnston?

The gender ratio in Johnston is as follows:
  • 44.6% males (950 residents)
  • 55.4% females (1,182 residents)

What is the median age in Johnston?

The median age in Johnston is 46.9.

What is the age distribution of the population in Johnston?

The age distribution in Johnston is as follows:
  • Under 15: 17.9% (381 residents)
  • Ages 15-24: 7.4% (158 residents)
  • Ages 25-44: 20.4% (435 residents)
  • Ages 45-64: 23.9% (510 residents)
  • Over 65: 30.4% (648 residents)

What is the racial and ethnic makeup of Johnston?

The racial and ethnic makeup of Johnston is as follows:
  • White: 29% (619 residents)
  • Black or African American: 62.4% (1,331 residents)
  • American Indian and Alaska Native: 0.2% (4 residents)
  • Asian: 1.6% (33 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 5.8% (124 residents)
  • Other: 1% (21 residents)

What percentage of the population in Johnston are U.S.-born citizens?

U.S.-born citizens represent 96.4% of the population in Johnston.

How many housing units are there in Johnston?

There are 1,160 housing units in Johnston, reflecting a -2.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Johnston and what is the average household size?

Johnston has a total of 1,002 households, with an average of 2 people in each.

What is the median household income in Johnston?

Johnston has a median household income of $34,412, representing a -1.6% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Johnston?

The employment rate is 91.4% in Johnston, with a workforce of 680 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 68.2% (464 residents)
  • Blue-collar workers: 31.8% (216 residents)

Places of employment:
  • Self-employed: 12.5% (85 residents)
  • Private companies: 57.4% (390 residents)
  • Governmental workers: 26.3% (179 residents)
  • Not-for-profit companies: 3.8% (26 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025