Grafton, IL Profile: Facts, Map & Data


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Grafton, Illinois - Basic Facts

The City of Grafton had a population of 678 as of July 1, 2016. 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, 2016.

Neighborhood Data

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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, 2016)


Total Population 678
Population in Households 670
Population in Familes 551
Population in Group Qrtrs 8
Population Density1 183
Diversity Index2 11


Total Households 313
Average Household Size 2.14
Family Households 217
Average Family Size 3


Total Housing Units 406 (100%)
Owner Occupied HU 245 (60.3%)
Renter Occupied HU 68 (16.7%)
Vacant Housing Units 93 (22.9%)
Median Home Value $156,250
Average Home Value $204,082


Median Household Income $56,479
Average Household Income $73,845
Per Capita Income $31,851
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.09% -0.09%
Households 0.47% 0.13%
Families 1.23% 0.09%
Median Household Income   1.06%
Per Capita Income   1.86%
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.

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, 2016 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 # 830 39th
Population Density1 # 1293 6th
Diversity Index2 # 784 43rd
Median Household Income # 511 63rd
Per Capita Income # 277 80th

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

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