Franklin Grove, IL 61031 ZIP Code Profile

Related Place Profiles:
Franklin Grove, IL

ZIP Code 61031: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Franklin Grove, IL 61031

Acceptable Alternative
Franklin Grv, IL 61031

  • ZIP Code Type: STANDARD
  • County: Lee County
  • Centroid: Latitude 41.831, Longitude -89.307
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 61031 has segments in 2 Counties (Lee, Ogle).

  • Businesses Addresses: 47
  • PO Box Addresses: 173
  • Residential Addresses: 475
    • Multi-Family Addresses: 53
    • Single Family Addresses: 422

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


61031 ZIP Code Map

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Franklin Grove, IL 61031 Data & Demographics (As of July 1, 2018)


Total Population 1,791
Population in Households 1,664
Population in Familes 1,402
Population in Group Qrtrs 127
Population Density2 36
Diversity Index3 14


Median Household Income $59,421
Average Household Income $76,694
Per Capita Income $28,836


Total Housing Units 728 (100%)
Owner Occupied HU 476 (65.4%)
Renter Occupied HU 180 (24.7%)
Vacant Housing Units 72 ( 9.9%)
Median Home Value $124,771
Average Home Value $162,815


Total Households 656
Average Household Size 2.54
Family Households 458
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 -0.15% -0.39%
Households 0.02% -0.31%
Families -0.18% -0.4%
Median Household Income   3.09%
Per Capita Income   2.97%

Franklin Grove, IL 61031 - Peer Comparisons by Rank and Percentile

The table below compares 61031 to the other 1,378 ZIP Codes in Illinois 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 # 721 48th
Population Density # 821 40th
Diversity Index # 664 52nd
Median Household Income # 549 60th
Per Capita Income # 666 52nd

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

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