Johnson County, Kentucky Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 52nd-largest in Kentucky
The population of Johnson County, Kentucky is 22,464 as of the 2023 American Community Survey, making it the 52nd-largest county in Kentucky. The median household income is $43,014, the median home value is $125,300, and the median age is 42.0.
The population of Johnson County has declined 5.6% since 2010 (23,398 → 22,098), a -0.41% annualized rate.
22,464
Population
-0.41%
Annual growth
86
People / sq mi
$43,014
Median Income
$125,300
Median Home Value
Johnson County covers 262 sq mi of land at 85.8 people per square mile.
About Johnson County, KY
Among US counties, Johnson County stands out first on household income: a median of $43,014, below the US median of $78,538. With 22,464 residents, Johnson County is a county in Kentucky.
Money is tight relative to the rest of US counties: the median household earns just $43,014, below the US median of $78,538. The poverty rate is 16.9%, above the national 12.4%. Property is affordable here, the median home worth $125,300, with typical rent around $698.
Degree attainment is on the lower side for US counties: 16.6% of adults hold a bachelor’s degree, below the national 35.0%. About 7.6% of the workforce is home-based, below the national 14.0%, and the average commute runs about 26 minutes each way.
Johnson County Population History (2010-2024)
The county of Johnson County had a population of 23,398 in 2010 and 22,098 in 2024, a -5.6% growth over 14 years. The peak was 23,474 in 2013. Average annual growth rate: -0.40%.
22,098
Population (2024)
23,398
Population (2010)
23,474
Peak (2013)
-0.40%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 23,398 |
| 2011 | 23,430 |
| 2012 | 23,419 |
| 2013 | 23,474 |
| 2014 | 23,266 |
| 2015 | 23,144 |
| 2016 | 22,895 |
| 2017 | 22,618 |
| 2018 | 22,432 |
| 2019 | 22,188 |
| 2020 | 22,648 |
| 2021 | 22,550 |
| 2022 | 22,234 |
| 2023 | 22,139 |
| 2024 | 22,098 |
Race & Ethnicity
| White | 95.4% |
| Black or African American | 0.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
42.0
Median Age
50.2%
Female
49.8%
Male
18.8%
Age 65+
Age Distribution
Children (under 15): 18.1% · Seniors (65+): 18.8%
Income & Poverty
| Median household income | $43,014$-19,403 vs state |
| Mean household income | $60,016 |
| Per-capita income | $24,579 |
| Poverty rate | 16.9%+5.1% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 44.0% |
Top Industries by Employment
The largest employment sector in Johnson County is professional & business services, accounting for 31.3% of workers.
How residents commute
0.0%
Drive alone
0.6%
Carpool
82.1%
Public transit
7.6%
Work from home
26.4 min
Avg commute
Housing
$125,300$-67,000 vs state
Median home value
$698
Median rent
66.4%
Homeownership rate
10,530
Total housing units
84.0%
Occupied
16.0%
Vacant
33.6%
Renter-occupied
Social & access
93.7%
With health insurance
90.2%
With broadband internet
17.4%
Foreign-born
5.0%
Veterans (18+)
24.5%
With a disability
98.2%
Speak language other than English at home
Education
82.3%
High School+
16.6%
Bachelor's+
Largest cities in Kentucky
Other counties in Kentucky
Part of Kentucky
Metro areas in Kentucky
County rankings
Frequently Asked Questions
Johnson County, Kentucky has a population of 22,464 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 52nd-largest county in Kentucky. Population density is 86 people per square mile.
The population of Johnson County has declined 5.6% since 2010 (23,398 → 22,098), a -0.41% annualized rate.
The median household income in Johnson County, Kentucky is $43,014, with mean (average) household income of $60,016 and per-capita income of $24,579. 16.9% of residents live below the federal poverty level.
In Johnson County, the largest racial and ethnic groups are White (95.4%), Hispanic or Latino (0.7%), Black or African American (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Johnson County, Kentucky is 42.0 years. Residents are 50.2% female and 49.8% male.
The median home value in Johnson County is $125,300 and median monthly rent is $698. 66.4% of occupied housing units are owner-occupied. The county has 10,530 total housing units, 16.0% of which are vacant.
The largest employment sector in Johnson County, Kentucky is professional, scientific, and management services, employing 31.3% of workers. The unemployment rate is 2.2%.
Louisville/Jefferson County is among the largest cities associated with Johnson County, Kentucky, with a population of 627,210.
Johnson County, KY Climate
Johnson County, KY has an average annual temperature of 12.5°C (55°F) and receives about 1134 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.5°C
Avg Temp
1134
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 0° / 33° | 78 mm |
| February | 2° / 36° | 84 mm |
| March | 7° / 45° | 99 mm |
| April | 12° / 54° | 95 mm |
| May | 17° / 62° | 112 mm |
| June | 21° / 70° | 98 mm |
| July | 24° / 75° | 126 mm |
| August | 23° / 73° | 99 mm |
| September | 20° / 67° | 84 mm |
| October | 13° / 56° | 76 mm |
| November | 8° / 46° | 90 mm |
| December | 3° / 37° | 93 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Johnson County, KY
The most comfortable months to visit Johnson County, KY are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -5°C low). July is usually the wettest month.
Where to stay near Johnson County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.