The ZIP Code maps and database are updated 4 times per year. Database updated: March 1, 2026, Maps updated: May 1, 2024.
Advertisement
Fairfield, IL 62837 Data & Demographics
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION
Total Population
7,868 (100%)
Population Density
48 per sq mi
Diversity Index1
13
INCOME
Median Household Income
$50,536
Per Capita Income
$35,654
Median Home Value
$103,900
HOUSING
Total HU (Housing Units)
4,056 (100%)
Owner Occupied HU
2,824 (69.6%)
Renter Occupied HU
853 (21.0%)
Vacant Housing Units
379 (9.3%)
HOUSEHOLDS
Total Households
3,677
Average Household Size
2.12
Family Households
2,221 (60.4%)
NOTES
The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).
Fairfield, IL 62837 - Peer Comparisons by Rank and Percentile
The table below compares 62837 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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.
