Adair, IL Profile: Facts, Map & Data


Adair Local Links & Resources:
Hotels | Resources | ALL Adair Content

Also See: Adair, IL ZIP Codes & ZIP Code Maps | Local Area Photos

Adair, Illinois - Basic Facts

The Adair Census Designated Place had a population of 220 as of July 1, 2017. Adair ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Adair is located at latitude 40.4183 and longitude -90.4974 in McDonough County. The formal boundaries for the Adair Census Designated Place (see map below) encompass a land area of 0.43 sq. miles and a water area of 0 sq. miles. McDonough County is in the Central time zone (GMT -6). The elevation is 646 feet.

The Adair Census Designated Place (GNIS ID: 2628541) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Adair Census Designated Place is located within Township of New Salem, a minor civil division (MCD) of McDonough County.

Beneath the boundary map are tables with Adair population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Adair: Reedyville.

Neighborhood 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 certain data.


Adair Census Designated Place, IL Boundary Map

Also See: BIG Map | Driving Directions | IL Congressional Districts
Boundary Maps: Township of New Salem | McDonough County | Illinois Counties

Search the map for:

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


Total Population 220
Daytime Population: Workers 40
Daytime Population: Residents 101
Total Daytime Population (TDP) 141
Ratio TDP/Total Population1 0.64
Population in Households 220
Population in Familes 187
Population in Group Qrtrs 0
Population Density2 512
Diversity Index3 6


Median Household Income $52,211
Average Household Income $69,263
Per Capita Income $28,157


Total Housing Units 101 (100%)
Owner Occupied HU 74 (73.3%)
Renter Occupied HU 19 (18.8%)
Vacant Housing Units 8 ( 7.9%)
Median Home Value $107,143
Average Home Value $125,676


Total Households 93
Average Household Size 2.37
Family Households 71
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 0.64% 0.0%
Households 0.61% -0.22%
Families 0.39% 0.0%
Median Household Income   2.37%
Per Capita Income   3.79%

Adair, IL - Peer Comparisons by Rank and Percentile

The table below compares Adair 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 # 1184 14th
Population Density # 1075 21st
Diversity Index # 1145 16th
Median Household Income # 732 47th
Per Capita Income # 556 59th

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

Illinois Research Tools

Illinois Census Data Comparison Tool

Compare Illinois Census Data
Highest or Lowest: