Decatur, Illinois Population 2018

Decatur, Illinois's estimated population is 72,174 according to the most recent United States census estimates. Decatur, Illinois is the 17th largest city in Illinois based on official 2017 estimates from the US Census Bureau.

The population density is 1704.27 people/mi² (658.02 people/km²), with a household density of 326.05 people/km² (844.46 people/mi²).

The overall median age is 38.6 years, 36.1 years for males, and 41.1 years for females. For every 100 females there are 89.1 males.

Based on data from the American Community Survey, in 2017 there were 35,762 households in the city, with an average size of 2.26 people per household. The vacancy rate was 12.6%, with a median rent of $654/month. The median house has 5.3 rooms, and has a value of $80,300.

The median income for households in Decatur, Illinois is $40,777, while the mean household income is $54,221. The per capita income is $23,601, and 20.1% of families and 25.1% of individuals are below the federal poverty line. 41.5% of those under 18 are in poverty, and 9.8% of those 65 years or older.

Year Population Growth Growth Rate
201772,174-631-0.87%
201672,805-583-0.79%
201573,388-831-1.12%
201474,219-761-1.01%
201374,980-493-0.65%
201275,473-471-0.62%
201175,944-196-0.26%
201076,140-5,720-6.99%
200081,860-2,025-2.41%
199083,885-10,054-10.70%
198093,9393,5423.92%
197090,39712,39315.89%
196078,00411,73517.71%
195066,2696,96411.74%
194059,3051,7953.12%
193057,51013,69231.25%
192043,81812,67840.71%
191031,14010,38650.04%
190020,7543,91323.23%
189016,8417,29476.40%
18809,5472,38633.32%
18707,1613,32286.53%
18603,8390.00%

Population by Race

Race Population
White53,055
Black or African American14,882
Two or More Races4,573
Asian882
Some Other Race464
American Indian and Alaska Native207
Native Hawaiian and Other Pacific Islander

Race Data via US Census (2016 ACS 5-Year Survey)

Decatur Il Population Pyramid 2018

0k0k0k0k0k Male Population0k0k0k0k0k Female Population757065605550454035302520151050

Decatur Il Median Age

38.6


Total

36.1


Male

41.1


Female

Lancaster Adults

There are 56,151 adults in Decatur Il.

Decatur Il Age Dependency

66

Age Dependency Ratio

29.1

Old Age Dependency Ratio

36.9

Child Dependency Ratio

Decatur Il Housing Indicators

Indicator Value
Median Number of Rooms (per House)
5.3
Houses Without Mortgage
9,102
Houses With Mortgage
10,181
Vacancy Rate
12.6
Median Rent
654
Median Home Value
80,300
Renter-Occupied Units
11,965
Owner-Occupied Units
19,283
Total Housing Units
35,762

This chart shows the employment and labor force participation rates in Decatur Il for residents over 16 years of age. The 2015 unemployment rate is 7.2% and the labor force participation rate is 60.9%.

Decatur Il Family/Household Indicators

Indicator Value
Average Household Size
2.26
Average Family Size
2.95
Total Households
31248
Married Couple Households
11228
Male Householder (no wife) Families
1240
Female Householder (no husband) Families
5257
Non Family Households
13523
Total Families
17725
Households With Own Children
7356
Unmarried Partner Households (Opposite Sex)
6.8
Unmarried Partner Households (Same Sex)
0.5

Decatur Il Income Distribution

Indicator Value
Under $10,000
3,520
$10,000 to $14,999
2,330
$15,000 to $24,999
4,518
$25,000 to $34,999
3,331
$35,000 to $49,999
4,760
$50,000 to $74,999
5,617
$75,000 to $99,999
3,212
$100,000 to $149,999
2,467
$150,000 to $199,999
984
Over $200,000
509

Decatur Il Household Income

Income

Median

Mean

Decatur Il

Illinois

$40,777

$59,196

$54,221

$81,865

Under 10k10k - 15k15k - 25k25k - 35k35k - 50k50k - 75k75k - 100k100k - 150k150k - 200kOver 200k00.0450.090.1350.18

Decatur Il Education Data

Decatur Il Educational Attainment (over 25)

Indicator Value Percentage
Less Than 9th Grade
1,7043.42%
9th to 12th Grade
4,4508.94%
High School Graduate
16,89733.94%
Some College
11,95924.02%
Associates Degree
4,0258.08%
Bachelors Degree
6,79313.64%
Graduate Degree
3,9647.96%