Grafton, IL Profile: Facts, Map & Data


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Grafton, Illinois - Basic Facts

The City of Grafton had a population of 670 as of July 1, 2017. Grafton ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Grafton is located at latitude 38.9765 and longitude -90.4259 in Jersey County. The formal boundaries for the City of Grafton (see map below) encompass a land area of 3.7 sq. miles and a water area of 0 sq. miles. Jersey County is in the Central time zone (GMT -6). The elevation is 449 feet.

The City of Grafton (GNIS ID: 2394943) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Grafton is located within Township of Quarry, a minor civil division (MCD) of Jersey County.

Beneath the boundary map are tables with Grafton 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 Grafton, IL Boundary Map

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Boundary Maps: Township of Quarry | Jersey County | Illinois Counties

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Grafton, IL Data & Demographics (As of July 1, 2017)


Total Population 670
Daytime Population: Workers 567
Daytime Population: Residents 380
Total Daytime Population (TDP) 947
Ratio TDP/Total Population1 1.41
Population in Households 662
Population in Familes 544
Population in Group Qrtrs 8
Population Density2 181
Diversity Index3 11


Median Household Income $58,633
Average Household Income $79,591
Per Capita Income $33,942


Total Housing Units 396 (100%)
Owner Occupied HU 239 (60.4%)
Renter Occupied HU 67 (16.9%)
Vacant Housing Units 90 (22.7%)
Median Home Value $155,625
Average Home Value $208,159


Total Households 306
Average Household Size 2.16
Family Households 212
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 -0.08% -0.33%
Households 0.09% -0.26%
Families 0.74% -0.38%
Median Household Income   2.33%
Per Capita Income   2.89%

Grafton, IL - Peer Comparisons by Rank and Percentile

The table below compares Grafton to the other 1,368 incorporated cities, towns and CDPs in Illinois 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 # 834 39th
Population Density # 1293 6th
Diversity Index # 800 41st
Median Household Income # 477 65th
Per Capita Income # 249 82nd

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

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