Fairfield, IA Community Profile: Data

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Fairfield, Iowa - Basic Facts

Fairfield is the common name for the community and surrounding area while the formal official name is the City of Fairfield.

It is an incorporated place (Class Code P1) located in Jefferson County at latitude 41.0086 and longitude -91.9627. Jefferson County is in the Central time zone (GMT -6). The elevation is 778 feet.

The formal boundaries for the City of Fairfield (see map) encompass a land area of 6.28 sq. miles and a water area of 0.16 sq. miles.

Camera Icon Photos of the local Fairfield, IA area

Also See: Fairfield, IA ZIP Codes and ZIP Code Maps

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.


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.

Information Updates

The Demographic Data for the 3,713 Iowa cities, towns, counties, ZIP Codes and Census Designated Places (CDPs) profiled in this gazetteer is updated annually. Last Update: July 1, 2014.

The ZIP Code maps and the data regarding the number of residential and business addresses in each ZIP Code are updated four times per year. Last Update: November 1, 2014.

The information on the 39,825 Iowa Physical, Cultural and Historic Features is updated six times per year. Last Update: December 2, 2014.

The School Attendance Zone Maps for 1,427 Iowa public schools are updated four times per year. Last Update: October 6, 2014.