Fairfield, OH Profile: Facts, Map & Data


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Fairfield, Ohio - Basic Facts

The City of Fairfield had a population of 43,829 as of July 1, 2017. Fairfield ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Ohio. See peer rankings below.

The primary coordinate point for Fairfield is located at latitude 39.3314 and longitude -84.5427 in Butler County. The formal boundaries for the City of Fairfield (see map below) encompass a land area of 20.88 sq. miles and a water area of 0.12 sq. miles. Butler County is in the Eastern time zone (GMT -5). The elevation is 594 feet.

While the primary coordinates for City of Fairfield are located in Butler County, it should be noted that the formal boundaries for this community also extend into and Hamilton County.

The City of Fairfield (GNIS ID: 1085670) 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 Fairfield 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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City of Fairfield, OH Boundary Map

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Fairfield, OH Data & Demographics (As of July 1, 2017)


Total Population 43,829
Daytime Population: Workers 32,664
Daytime Population: Residents 20,276
Total Daytime Population (TDP) 52,940
Ratio TDP/Total Population1 1.21
Population in Households 43,302
Population in Familes 34,407
Population in Group Qrtrs 527
Population Density2 2,099
Diversity Index3 48


Median Household Income $57,999
Average Household Income $73,143
Per Capita Income $30,089


Total Housing Units 19,149 (100%)
Owner Occupied HU 10,788 (56.3%)
Renter Occupied HU 7,056 (36.8%)
Vacant Housing Units 1,305 ( 6.8%)
Median Home Value $158,669
Average Home Value $173,360


Total Households 17,844
Average Household Size 2.43
Family Households 11,412
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 0.42% 0.52%
Households 0.34% 0.47%
Families 0.05% 0.29%
Median Household Income   2.66%
Per Capita Income   2.58%

Fairfield, OH - Peer Comparisons by Rank and Percentile

The table below compares Fairfield to the other 1,215 incorporated cities, towns and CDPs in Ohio 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 # 26 98th
Population Density # 235 81st
Diversity Index # 60 95th
Median Household Income # 372 69th
Per Capita Income # 274 78th

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

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