Fairfield, IA Profile: Facts, Map & Data


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Fairfield, Iowa - Basic Facts

The City of Fairfield had a population of 9,962 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 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.

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, IA Boundary Map

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


Total Population 9,962
Daytime Population: Workers 6,722
Daytime Population: Residents 5,173
Total Daytime Population (TDP) 11,895
Ratio TDP/Total Population1 1.19
Population in Households 9,301
Population in Familes 6,484
Population in Group Qrtrs 661
Population Density2 1,587
Diversity Index3 37


Median Household Income $48,444
Average Household Income $63,276
Per Capita Income $29,163


Total Housing Units 4,899 (100%)
Owner Occupied HU 2,648 (54.1%)
Renter Occupied HU 1,824 (37.2%)
Vacant Housing Units 427 ( 8.7%)
Median Home Value $90,873
Average Home Value $129,362


Total Households 4,472
Average Household Size 2.08
Family Households 2,373
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 0.71% 0.7%
Households 0.87% 0.8%
Families 0.94% 0.67%
Median Household Income   1.7%
Per Capita Income   2.23%

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, 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 # 42 96th
Population Density # 77 92nd
Diversity Index # 48 95th
Median Household Income # 732 28th
Per Capita Income # 352 65th

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

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