Fairfield, IA Profile: Facts, Map & Data


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Fairfield, Iowa - Basic Facts

The City of Fairfield is an incorporated place (Class Code P1) located in Jefferson County at latitude 41.0069 and longitude -91.9671. Jefferson County is in the Central time zone (GMT -6). The elevation is 778 feet.

The formal official name is the City of Fairfield, but most people and references simply refer to it as Fairfield, Iowa.

The P1 Census Class Code for Fairfield indicates a populated place that is also an incorporated place with the same name and the same census code. The Incorporated Place has a Functional Status Code "A" which identifies an active government providing primary general-purpose functions.

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.

City of Fairfield, IA Boundary Map


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Fairfield, IA Data & Demographics (As of July 1, 2014)


Total Population 9,605
Population in Households 8,939
Population in Familes 6,265
Population in Group Qrtrs 666
Population Density1 1,534
Diversity Index2 27


Total Households 4,320
Average Household Size 2.07
Family Households 2,296
Average Family Size 3


Total Housing Units 4,767 (100%)
Owner Occupied HU 2,555 (53.6%)
Renter Occupied HU 1,765 (37.0%)
Vacant Housing Units 447 ( 9.4%)
Median Home Value $131,104
Average Home Value $170,559


Median Household Income $36,760
Average Household Income $53,395
Per Capita Income $24,357
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.35% 0.25%
Households 0.66% 0.43%
Families 0.82% 0.24%
Median Household Income   3.49%
Per Capita Income   3.3%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


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, 2014 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 # 43 96th
Population Density1 # 91 91st
Diversity Index2 # 78 92nd
Median Household Income # 982 3rd
Per Capita Income # 643 36th

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