Karns City, PA Profile: Facts, Map & Data


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Karns City, Pennsylvania - Basic Facts

The Borough of Karns City had a population of 211 as of July 1, 2017. Karns City ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Pennsylvania. See peer rankings below.

The primary coordinate point for Karns City is located at latitude 40.997 and longitude -79.7264 in Butler County. The formal boundaries for the Borough of Karns City (see map below) encompass a land area of 0.36 sq. miles and a water area of 0 sq. miles. Butler County is in the Eastern time zone (GMT -5). The elevation is 1,227 feet.

The Borough of Karns City (GNIS ID: 1214996) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Karns City population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Borough of Karns City, PA Boundary Map

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Karns City, PA Data & Demographics (As of July 1, 2017)


Total Population 211
Daytime Population: Workers 214
Daytime Population: Residents 114
Total Daytime Population (TDP) 328
Ratio TDP/Total Population1 1.55
Population in Households 211
Population in Familes 179
Population in Group Qrtrs 0
Population Density2 582
Diversity Index3 4


Median Household Income $53,084
Average Household Income $67,763
Per Capita Income $26,049


Total Housing Units 97 (100%)
Owner Occupied HU 73 (75.3%)
Renter Occupied HU 16 (16.5%)
Vacant Housing Units 7 ( 7.2%)
Median Home Value $122,222
Average Home Value $132,095


Total Households 90
Average Household Size 2.34
Family Households 67
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.13% 0.38%
Households 0.31% 0.44%
Families 1.08% 0.3%
Median Household Income   2.55%
Per Capita Income   3.52%

Karns City, PA - Peer Comparisons by Rank and Percentile

The table below compares Karns City to the other 1,762 incorporated cities, towns and CDPs in Pennsylvania by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1609 9th
Population Density # 1340 24th
Diversity Index # 1623 7th
Median Household Income # 786 55th
Per Capita Income # 885 50th

Additional comparisons and rankings can be made with a VERY EASY TO USE Pennsylvania Census Data Comparison Tool.

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