Piatt County, Illinois Population 2020

Piatt County, Illinois's estimated population is 16,276 with a growth rate of -0.37% in the past year according to the most recent United States census data. Piatt County, Illinois is the 65th largest county in Illinois.

Year Population Growth Growth Rate
202016,276-60-0.37%
201916,336-60-0.37%
201816,396-60-0.36%
201716,456-70-0.42%
201616,5261771.08%
201516,349-59-0.36%
201416,408-21-0.13%
201316,429-71-0.43%
201216,500-177-1.06%
201116,677-32-0.19%
201016,7091,1617.47%
199015,548-1,033-6.23%
198016,5811,0726.91%
197015,5095493.67%
196014,9609907.09%
195013,970-689-4.70%
194014,659-929-5.96%
193015,588-126-0.80%
192015,714-662-4.04%
191016,376-1,330-7.51%
190017,7066443.77%
189017,0621,4799.49%
188015,5834,63042.27%
187010,9534,82678.77%
18606,1274,521281.51%
18501,6060.00%
2020 Growth Rate
-0.37%
County Website
Founded
1841
County Seat

Piatt County, Illinois Population Growth

Population by Race

Race Population Percentage
White15,95597.13%
Two or More Races2641.61%
Black or African American900.55%
Asian740.45%
Some Other Race340.21%
American Indian and Alaska Native100.06%

Piatt County, Illinois Population Pyramid 2020

Piatt County, Illinois Median Age

43


Total

41.9


Male

43.9


Female

Piatt County, Illinois Adults

There are 12,725 adults, (3,103 of whom are seniors) in Piatt County, Illinois.

Piatt County, Illinois Age Dependency

70.7

Age Dependency Ratio

32.2

Old Age Dependency Ratio

38.5

Child Dependency Ratio

Piatt County, Illinois Sex Ratio

Female

8,347

50.81%

Male

8,080

49.19%

Piatt County, Illinois Households and Families

Piatt County, Illinois Renter vs Owner Occupied by Household Type

Piatt County, Illinois Household Types

Type Owner Renter
Married91.7%8.3%
All81.8%18.2%
Non Family69.6%30.4%
Female64.3%35.7%
Male58.9%41.1%

81.8%

Rate of Home Ownership

Type Count Average Size Owned
All6,7002.4481.8
Married3,9542.9791.7
Non Family1,9251.1169.6
Female5413.0364.3
Male2803.0458.9

2.91

Average Family Size

2.44

Average Household Size

4.6%

Unmarried (Opposite Sex)

1%

Unmarried (Same Sex)

Piatt County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade1961.69%
9th to 12th Grade5454.70%
High School Graduate3,94934.07%
Some College2,33620.15%
Associates Degree1,32811.46%
Bachelors Degree2,11318.23%
Graduate Degree1,1259.70%

Piatt County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White11,23310,5363,086
Hispanic13212873
Multiple Races12110828
Black634617
Asian372723
Other Race262626
Native American101010

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among native american people with a rate of 100.00%.

Name Average Male Female
Overall$40,742$49,087$34,426
Less Than High School$26,875$32,917$13,250
High School Grad$33,514$46,224$27,928
Some College$38,530$47,896$30,654
Bachelors Degree$52,076$70,028$45,513
Graduate Degree$54,750$57,045$53,523

$40,742

Average Earnings

$49,087

Average Male

$34,426

Average Female

Piatt County, Illinois Language

Piatt County, Illinois Language by Age

Piatt County, Illinois Language

97.49% of Piatt County, Illinois residents speak only English, while 2.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.98% of the population.

Piatt County, Illinois Poverty

Piatt County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White15,7718805.58%
Asian745777.03%
Multiple264197.20%
Black531120.75%
Hispanic21383.76%

5.94%

Overall Poverty Rate

5.37%

Male Poverty Rate

6.49%

Female Poverty Rate

Poverty in Piatt County, Illinois

The race most likely to be in poverty in Piatt County, Illinois is Asian, with 77.03% below the poverty level.

The race least likely to be in poverty in Piatt County, Illinois is Hispanic, with 3.76% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.47%. Among those working part-time, it was 7.15%, and for those that did not work, the poverty rate was 10.38%.

Name Poverty
Less Than High School11.46%
High School7.74%
Some College4.64%
Bachelors or Greater1.33%
Name Poverty
Female Unemployed26.40%
Male Unemployed23.89%
Male Employed3.50%
Female Employed2.28%

Piatt County, Illinois Income

Piatt County, Illinois Income by Household Type

Name Median Mean
Households$69,271$82,458
Families$83,147$96,296
Married Families$89,615-
Non Families$35,391$44,230

Piatt County, Illinois Marital Status

Piatt County, Illinois Marital Status

Marriage Rates

60.8%

Overall Marriage Rate

62.8%

Male Marriage Rate

58.9%

Female Marriage Rate

Piatt County, Illinois Married by Age and Sex

Piatt County, Illinois Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Piatt County, Illinois Marital Status by Race

Piatt County, Illinois Veterans

1,168

Number of Veterans

1,144

Male Veterans

24

Female Veterans

War Veterans
Vietnam369
First Gulf War292
Second Gulf War189
Korea122
World War II36
Age Group Veterans
75+334
35 to 54324
65 to 74295
18 to 34108
55 to 64107
Name Veterans % of Total
White1,1529.26%
2 or More1612.21%
Hispanic32.17%

$Piatt County, Illinois Veterans by Education

5.65%

Veteran Poverty Rate

28.25%

Veteran Disability Rate

Piatt County, Illinois Employment Status

67.8%

Labor Force Participation

64.9%

Employment Rate

4.2%

Unemployment Rate

Piatt County, Illinois Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

82.94%

Born in Illinois

98.85%

Native Born

1.15%

Foreign Born

0.56%

Non Citizen

Place of Birth

98.85% of Piatt County, Illinois residents were born in the United States, with 82.94% having been born in Illinois. 0.56% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990