Fairfield, IA Profile: Facts & Data


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Fairfield, Iowa - Basic Facts

The City of Fairfield had a population of 10,086 as of July 1, 2018. 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 Iowa. See peer rankings below.

The primary coordinate point for Fairfield is located at latitude 41.0069 and longitude -91.9671 in Jefferson County. The formal boundaries for the City of Fairfield (see map below) encompass a land area of 6.28 sq. miles and a water area of 0.16 sq. miles. Jefferson County is in the Central time zone (GMT -6). The elevation is 778 feet.

The City of Fairfield (GNIS ID: 467811) has a C2 Census Class Code which indicates an active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Fairfield is located within , a minor civil division (MCD) of Jefferson County.

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  1. Fairfield 2018 Demographic Data
  2. Growth Rates for Fairfield (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Fairfield, IA Data & Demographics (As of July 1, 2018)


Total Population 10,086
Population in Households 9,420
Population in Familes 6,482
Population in Group Qrtrs 666
Population Density2 1,607
Diversity Index3 37


Median Household Income $48,722
Average Household Income $63,168
Per Capita Income $29,085


Total Housing Units 4,869 (100%)
Owner Occupied HU 2,441 (50.1%)
Renter Occupied HU 2,081 (42.7%)
Vacant Housing Units 347 ( 7.1%)
Median Home Value $95,707
Average Home Value $133,456


Total Households 4,522
Average Household Size 2.08
Family Households 2,398
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.77% 0.86%
Households 0.9% 0.96%
Families 0.95% 0.85%
Median Household Income   2.02%
Per Capita Income   2.37%

Fairfield, IA - Peer Comparisons by Rank and Percentile

The table below compares Fairfield to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 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 # 44 96th
Population Density # 72 93rd
Diversity Index # 48 95th
Median Household Income # 772 24th
Per Capita Income # 476 53rd

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

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