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World Population Review
Piatt County, Illinois Population 2021
Piatt County, Illinois's estimated population is 16,300 with a growth rate of -0.13% in the past year according to the most recent United States census data. Piatt County, Illinois is the 66th largest county in Illinois. The 2010 Population was 16,709 and has seen a growth of -2.45% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 16,300 | -22 | -0.13% |
| 2020 | 16,322 | -22 | -0.13% |
| 2019 | 16,344 | -22 | -0.13% |
| 2018 | 16,366 | -56 | -0.34% |
| 2017 | 16,422 | -102 | -0.62% |
| 2016 | 16,524 | 174 | 1.06% |
| 2015 | 16,350 | -59 | -0.36% |
| 2014 | 16,409 | -20 | -0.12% |
| 2013 | 16,429 | -72 | -0.44% |
| 2012 | 16,501 | -178 | -1.07% |
| 2011 | 16,679 | -30 | -0.18% |
| 2010 | 16,709 | 1,161 | 7.47% |
| 1990 | 15,548 | -1,033 | -6.23% |
| 1980 | 16,581 | 1,072 | 6.91% |
| 1970 | 15,509 | 549 | 3.67% |
| 1960 | 14,960 | 990 | 7.09% |
| 1950 | 13,970 | -689 | -4.70% |
| 1940 | 14,659 | -929 | -5.96% |
| 1930 | 15,588 | -126 | -0.80% |
| 1920 | 15,714 | -662 | -4.04% |
| 1910 | 16,376 | -1,330 | -7.51% |
| 1900 | 17,706 | 644 | 3.77% |
| 1890 | 17,062 | 1,479 | 9.49% |
| 1880 | 15,583 | 4,630 | 42.27% |
| 1870 | 10,953 | 4,826 | 78.77% |
| 1860 | 6,127 | 4,521 | 281.51% |
| 1850 | 1,606 | 0.00% |
2021 Growth Rate
-0.13%
County Website
State
Founded
1841
County Seat
Lat./Long.
2010 Population
16,709
Growth Since 2010
-2.45%
Piatt County, Illinois Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 15,914 | 97.03% |
| Two or More Races | 260 | 1.59% |
| Black or African American | 91 | 0.55% |
| Asian | 88 | 0.54% |
| Some Other Race | 39 | 0.24% |
| American Indian and Alaska Native | 9 | 0.05% |
Piatt County, Illinois Population by Race
Piatt County, Illinois Population Pyramid $2021
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Piatt County, Illinois Population by Age
Piatt County, Illinois Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 6,692 | 2.44 | 82.5 |
| Married | 3,911 | 2.96 | 92.8 |
| Non Family | 1,970 | 1.09 | 70.7 |
| Female | 511 | 3.23 | 61.4 |
| Male | 300 | 3.12 | 61.3 |
2.93
Average Family Size
2.44
Average Household Size
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Piatt County, Illinois Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 160 | 1.38% |
| 9th to 12th Grade | 549 | 4.74% |
| High School Graduate | 3,930 | 33.93% |
| Some College | 2,218 | 19.15% |
| Associates Degree | 1,417 | 12.23% |
| Bachelors Degree | 2,220 | 19.16% |
| Graduate Degree | 1,090 | 9.41% |
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Piatt County, Illinois Educational Attainment by Sex (over 25)
Piatt County, Illinois Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 11,226 | 10,572 | 3,163 |
| Hispanic | 138 | 130 | 63 |
| 2+ Races | 133 | 117 | 36 |
| Black | 49 | 30 | 18 |
| Asian | 42 | 30 | 25 |
| Other Race | 30 | 30 | 30 |
| Native American | 9 | 9 | 9 |
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%.
Piatt County, Illinois Educational Attainment by Race
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$42,610
Average Earnings
$50,490
Average Male
$36,268
Average Female
Piatt County, Illinois Earnings by Educational Attainment
Piatt County, Illinois Language by Age
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Piatt County, Illinois Language
97.10% of Piatt County, Illinois residents speak only English, while 2.90% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.15% of the population.
Piatt County, Illinois Language
Piatt County, Illinois Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 15,744 | 741 | 4.71% |
| Asian | 88 | 72 | 81.82% |
| Multiple | 260 | 20 | 7.69% |
| Black | 53 | 9 | 16.98% |
| Hispanic | 222 | 6 | 2.70% |
5.18%
Overall Poverty Rate
5.36%
Male Poverty Rate
5.01%
Female Poverty Rate
Poverty in Piatt County, Illinois
The race most likely to be in poverty in Piatt County, Illinois is Asian, with 81.82% below the poverty level.
The race least likely to be in poverty in Piatt County, Illinois is Hispanic, with 2.70% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.67%. Among those working part-time, it was 10.16%, and for those that did not work, the poverty rate was 7.95%.
Piatt County, Illinois Poverty
Piatt County, Illinois Poverty Rate by Education
Piatt County, Illinois Marital Status
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Marriage Rates
60.4%
Overall Marriage Rate
59.9%
Male Marriage Rate
60.8%
Female Marriage Rate
Piatt County, Illinois Married by Age and Sex
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Piatt County, Illinois Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Piatt County, Illinois Marital Status by Race
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Piatt County, Illinois Marital Status
Piatt County, Illinois Veterans by War
Piatt County, Illinois Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 1,043 | 8.40% |
| 2+ Races | 20 | 14.60% |
| Hispanic | 1 | 0.69% |
Piatt County, Illinois Veterans by Race
Piatt County, Illinois Veterans by Education
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1.98%
Veteran Poverty Rate
29.35%
Veteran Disability Rate
Piatt County, Illinois Veterans by Education
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65.9%
Labor Force Participation
62.7%
Employment Rate
4.7%
Unemployment Rate
Piatt County, Illinois Employment by Age
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Piatt County, Illinois Employment by Race
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Piatt County, Illinois Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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98.71%
Native Born
1.29%
Foreign Born
0.70%
Non Citizen
0.59%
Naturalized
Place of Birth
98.71% of Piatt County, Illinois residents were born in the United States, with 82.70% having been born in Illinois. 0.70% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Piatt County, Illinois Place of Birth
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990