Borough · Pennsylvania
Knox, Pennsylvania
Knox, borough, in Clarion County, Pennsylvania. Knox had 1,068 residents on July 1, 2025 by the Census Bureau's estimate, down 2.7% since 2020; the 2020 Census counted 1,093 and the ACS 2020-2024 5-year estimates put it at 1,082 (±193). GEOID 4240272.
Residents, July 2025 estimate
1,068
Census Bureau estimate (no margin published)
2020 Census count: 1,093 · ACS 2020-2024: 1,082 ±193
Median household income
$69,000
±$28,072 (90% margin)
Pennsylvania: $77,971
Median home value
$114,100
±$6,624 (90% margin)
Pennsylvania: $254,500
Median gross rent
$846
±$127 (90% margin)
Pennsylvania: $1,209
Where is Knox and what county is it in?
Knox is a borough in Clarion County, Pennsylvania. It covers 0.6 square miles of land, 1,945 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Knox, and is it growing?
The Census Bureau estimates that 1,068 people lived in Knox on July 1, 2025, down 2.7% since 2020, while Pennsylvania grew 0.4%. The 2020 Census counted 1,093 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,082 (±193).
| Measure | Knox | Clarion County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,082 ±193 | 37,179 | no clear change |
| Households | 454 ±75 | 15,049 | no clear change |
| Average household size | 2.36 ±0.24 | 2.36 | no clear change |
| Housing units | 511 ±76 | 18,856 | no clear change |
Knox's population since 2000
From 1,176 in 2000 to 1,068 in 2025: down 9.2%. The 2000, 2010 and 2020 figures are census counts, each for Knox 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 Knox?
The median resident of Knox is 34.3 years old; 20.2% are under 18 and 12.5% are 65 or older. The largest group is non-Hispanic white residents at 95.0%, then non-Hispanic residents of two or more races at 2.6%.
| Measure | Knox | Clarion County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 34.3 ±7.4 | 41.7 | −10.9 |
| Under 18 years | 20.2% ±4.2 pts | 19.0% | – |
| 65 years and over | 12.5% ±3.9 pts | 20.6% | – |
| Male | 51.8% ±6.0 pts | 49.5% | – |
| Hispanic or Latino (any race) | 0.0% ±3.0 pts | 1.2% | – |
| White alone, not Hispanic | 95.0% ±4.0 pts | 94.1% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±3.0 pts | 1.6% | – |
| Asian alone, not Hispanic | 2.3% ±2.6 pts | 0.7% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.6% ±3.0 pts | 2.3% | – |
| Some other race alone, not Hispanic | 0.0% ±3.0 pts | 0.2% | – |
| Born outside the United States | 0.8% ±1.1 pts | 1.0% | – |
| Speak a language other than English at home (age 5+) | 3.0% ±2.5 pts | 3.3% | – |
| Civilian veterans (age 18+) | 3.9% ±2.1 pts | 7.3% | – |
| With a disability | 18.6% ±5.8 pts | 15.2% | – |
| No health insurance coverage | 4.7% ±4.4 pts | 6.1% | – |
| High school graduate or higher (age 25+) | 90.8% ±5.7 pts | 91.3% | – |
| Bachelor's degree or higher (age 25+) | 29.7% ±7.4 pts | 23.6% | no clear change |
| Graduate or professional degree (age 25+) | 9.7% ±4.4 pts | 8.7% | – |
| Lived in the same house a year earlier | 85.6% ±7.2 pts | 88.2% | – |
| Moved from another state in the past year | 3.4% ±2.8 pts | 1.6% | – |
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 Knox earn?
Half of Knox's 454 households earn less than $69,000 a year (±$28,072), against $62,649 in Clarion County and $77,971 in Pennsylvania. In 2015-2019 it was $53,404 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.9% of residents live below the poverty line.
| Measure | Knox | Clarion County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $69,000 ±$28,072 | $62,649 | no clear change |
| Mean household income | $81,861 ±$12,769 | $78,991 | – |
| Per capita income | $35,994 ±$5,580 | $32,832 | no clear change |
| People below the poverty line | 12.9% ±4.8 pts | 13.1% | no clear change |
| Children under 18 below the poverty line | 19.7% ±12.9 pts | 13.9% | no clear change |
| Households receiving SNAP | 24.4% ±10.1 pts | 15.7% | – |
| Households with a computer | 93.2% ±4.7 pts | 90.6% | – |
| Households with a broadband subscription | 86.6% ±7.5 pts | 85.3% | – |
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 Knox?
Owners occupy 61.2% of Knox's occupied homes and renters 38.8%. The median owner-occupied home is valued at $114,100 by its owner (±$6,624). The median renter pays $846 a month including utilities.
| Measure | Knox | Clarion County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $114,100 ±$6,624 | $155,700 | no clear change |
| Median gross rent | $846 ±$127 | $798 | no clear change |
| Renters paying 35% or more of income on rent | 11.5% ±10.0 pts | 38.7% | – |
| Median monthly owner costs, with a mortgage | $1,234 ±$152 | $1,210 | – |
| Owner-occupied homes | 61.2% ±8.8 pts | 72.5% | no clear change |
| Renter-occupied homes | 38.8% ±8.8 pts | 27.5% | – |
| Housing units | 511 ±76 | 18,856 | no clear change |
| Homeowner vacancy rate | 3.4% ±5.1 pts | 0.6% | – |
| Rental vacancy rate | 9.7% ±10.1 pts | 8.6% | – |
| Single-family detached homes | 74.8% ±8.1 pts | 75.5% | – |
| Mobile homes | 4.9% ±3.5 pts | 10.3% | – |
| Built 2020 or later | 0.0% ±6.2 pts | 0.5% | – |
| Built 2010 to 2019 | 1.4% ±1.4 pts | 4.2% | – |
| Built 1939 or earlier | 41.3% ±8.8 pts | 25.7% | – |
| Households with no vehicle | 8.6% ±6.2 pts | 6.5% | – |
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 many new homes is Knox building?
Builders took permits for 0 new housing units in Knox in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 2.0 across Pennsylvania.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Knox work and get to work?
76.4% of Knox's workers drive alone and 9.0% work from home. The average trip to work takes 21.6 minutes. The unemployment rate in 2020-2024 averaged 7.5%.
| Measure | Knox | Clarion County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.6% ±8.8 pts | 59.8% | – |
| Unemployment rate | 7.5% ±4.2 pts | 5.1% | – |
| Drove alone to work | 76.4% ±8.1 pts | 77.1% | – |
| Carpooled | 5.3% ±4.1 pts | 8.5% | – |
| Public transportation | 0.0% ±5.6 pts | 0.0% | – |
| Walked | 7.3% ±5.3 pts | 4.5% | – |
| Worked from home | 9.0% ±4.7 pts | 8.6% | no clear change |
| Mean travel time to work | 21.6 min ±4.5 | 24.6 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 Knox?
No census tract lies mostly in Knox; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1604Clarion County | 3,494 | $64,954 |
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 Knox) · Census block assignment files
How does Knox compare with other places in Pennsylvania?
By the Census Bureau's July 2025 estimates, Knox is the 10,001st-most populous of the 19,476 U.S. incorporated places that have one and the 583rd-most populous of 1,012 in Pennsylvania.
Knox ranks 1,411th of 2,136 places in Pennsylvania with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 583rd | 1,012 |
| Growth 2020-2025 (PEP) | 1,409th | 1,764 |
| Residents per square mile | 633rd | 2,159 |
| Median household income | 1,411th | 2,136 |
| Per capita income | 1,384th | 2,157 |
| Median home value | 1,977th | 2,146 |
| Median gross rent | 1,491st | 1,963 |
| Poverty rate | 479th | 1,606 |
| Bachelor's degree or higher | 829th | 2,129 |
| Median age | 1,995th | 2,157 |
| Owner-occupied share | 1,808th | 2,149 |
| Work from home | 1,272nd | 1,710 |
| Travel time to work | 1,723rd | 2,156 |
Knox's figures with every place in Pennsylvania (CSV)
Every place in Pennsylvania, sortable · Compare Knox 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 Knox?
21 of the 57 figures for Knox 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 Knox 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 Knox.