Piatt County, IL ZIP Codes
Illinois (IL) · 10 ZIP codes · 10 cities
10
ZIP codes
16,753
population (2021)
+0.1%
pop change since 2010
17147
FIPS code
Piatt County ZIP code map
About Piatt County
Piatt County is located in Illinois and contains 10 ZIP codes across 10 cities and communities.
The county's population was 16,753 as of 2021,
an increase of
0.1% from 16,729 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Piatt County is 17147.
| Population | |
|---|---|
| 2021 population | 16,753 |
| 2010 population | 16,729 |
| Change | +0.1% |
| County details | |
|---|---|
| State | Illinois |
| FIPS code | 17147 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Piatt County
ZIP codes for Piatt County, IL (10)
| ZIP code | City | County | Map |
|---|---|---|---|
| 61813 | Bement | Piatt | View map |
| 61818 | Cerro Gordo | Piatt | View map |
| 61830 | Cisco | Piatt | View map |
| 61839 | De Land | Piatt | View map |
| 61854 | Mansfield | Piatt | View map |
| 61855 | Milmine | Piatt | View map |
| 61856 | Monticello | Piatt | View map |
| 61884 | White Heath | Piatt | View map |
| 61929 | Hammond | Piatt | View map |
| 61936 | La Place | Piatt | View map |
Demographics & statistics
17,031
Population
42.3
Median age
$79,866
Median household income
$40,871
Per capita income
$136,930
Median home value
$667
Median monthly rent
82.4%
Home ownership
9.9%
Poverty rate
9.2%
Unemployment
6,447
Housing units
20.6%
Bachelor's or higher
Age distribution
Male
Female
440
Under 5
482
559
5–9
612
432
10–14
473
464
15–19
508
432
20–24
474
905
25–34
991
1,002
35–44
1,099
976
45–54
1,069
579
55–59
635
675
60–64
739
934
65–74
1,024
471
75–84
517
257
85+
282
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 3,642 | 20.6% |
| 18 and over | 13,389 | 79.4% |
| 65 and over | 3,485 | 20.8% |
| Median age | 42.3 years | |
Race & ethnicity
White
95.1%
Two or more races
2.6%
Black or African American
0.9%
Hispanic or Latino
0.8%
Other race
0.2%
Asian
0.1%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 16,339 | 95.1% |
| Two or more races | 450 | 2.6% |
| Black or African American | 163 | 0.9% |
| Hispanic or Latino | 145 | 0.8% |
| Other race | 38 | 0.2% |
| Asian | 25 | 0.1% |
| American Indian / Alaska Native | 16 | 0.1% |
Household income
Under $10k
3.6%
$10k–$15k
2.5%
$15k–$25k
9.2%
$25k–$35k
9.1%
$35k–$50k
10.7%
$50k–$75k
17.8%
$75k–$100k
11.4%
$100k–$150k
22.9%
$150k–$200k
6.1%
$200k+
6.7%
| Range | % of households |
|---|---|
| Under $10k | 3.6% |
| $10k–$15k | 2.5% |
| $15k–$25k | 9.2% |
| $25k–$35k | 9.1% |
| $35k–$50k | 10.7% |
| $50k–$75k | 17.8% |
| $75k–$100k | 11.4% |
| $100k–$150k | 22.9% |
| $150k–$200k | 6.1% |
| $200k+ | 6.7% |
| Median income | $79,866 |
Housing
Home values
Under $50k
6.8%
$50k–$100k
30.3%
$100k–$150k
23.5%
$150k–$200k
15.4%
$200k–$300k
14.0%
$300k–$500k
6.0%
$500k–$1M
3.8%
$1M+
0.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $136,930 |
| Median rent / month | $667 |
| Owner occupied | 82.4% |
| Renter occupied | 17.6% |
| Vacant | 10.5% |
| Single-family detached | 85.6% |
| Large apartment buildings | 0.5% |
| Mobile homes | 3.2% |
| Median rooms | 6.5 |
| Avg household size (owned) | 2.51 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 3.0% |
| 2000–2009 | 7.3% |
| 1990–1999 | 10.0% |
| 1980–1989 | 6.1% |
| 1970–1979 | 16.7% |
| 1960–1969 | 13.9% |
| 1950–1959 | 13.3% |
| 1940–1949 | 5.1% |
| 1939 or earlier | 24.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.7% |
| 1 bedroom | 6.3% |
| 2 bedrooms | 24.5% |
| 3 bedrooms | 48.1% |
| 4 bedrooms | 14.1% |
| 5+ bedrooms | 6.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.5% |
| 1 vehicle | 28.4% |
| 2 vehicles | 41.1% |
| 3 or more | 28.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 65.7% |
| Electricity | 19.5% |
| Propane / LP gas | 12.6% |
| Fuel oil | 0.1% |
| Wood | 0.6% |
| Solar | 0.3% |
| No fuel used | 0.2% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,924 | 49.6% |
| Cohabiting couple | 429 | 6.7% |
| Male householder, no spouse | 1,163 | 20.0% |
| Female householder, no spouse | 1,495 | 23.7% |
| Households with children under 18 | 1,833 | 24.8% |
| Households with seniors (65+) | 2,431 | 35.4% |
| Average household size | 2.45 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.1% | 21.2% |
| Married | 51.6% | 50.7% |
| Separated | 0.4% | 2.3% |
| Widowed | 3.1% | 13.0% |
| Divorced | 16.8% | 12.7% |
Education
Less than 9th grade
0.9%
Some HS, no diploma
7.2%
HS graduate
40.4%
Some college, no degree
20.6%
Associate's degree
10.2%
Bachelor's degree
13.7%
Graduate / professional
7.0%
| Metric | % |
|---|---|
| HS diploma or higher | 91.9% |
| Bachelor's or higher | 20.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 397 | 8.2% |
| Kindergarten | 205 | 4.8% |
| Elementary school | 1,571 | 45.1% |
| High school | 743 | 25.6% |
| College / grad school | 539 | 16.4% |
Employment
Industry of employment
Retail trade
22.3%
Education & healthcare
21.4%
Manufacturing
12.2%
Professional & management
8.1%
Construction
7.2%
Transportation & utilities
6.1%
Finance & real estate
5.1%
Agriculture & mining
4.6%
Other services
3.6%
Arts, food & hospitality
3.5%
Public administration
2.9%
Wholesale trade
2.5%
Information
0.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 31.6% |
| Service | 13.6% |
| Sales & office | 30.2% |
| Natural resources & construction | 11.6% |
| Production & transportation | 13.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 82.4% |
| Government | 11.1% |
| Self-employed | 6.4% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 82.4% |
| Carpool | 8.1% |
| Public transit | 0.1% |
| Walk | 3.1% |
| Other means | 1.0% |
| Avg commute (minutes) | 22.5 |
Poverty
All people
9.9%
Under 18 years
16.4%
18 and over
9.1%
Married-couple families
2.5%
Female-led households
15.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 35.5% |
| Retirement income | 30.1% |
| Supplemental Security | 4.9% |
| Cash public assistance | 1.0% |
| Food stamps / SNAP | 10.2% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 32.9% |
| High cholesterol | 34.2% |
| Heart disease | 6.5% |
| Stroke | 3.0% |
| Asthma | 9.3% |
| Arthritis | 27.0% |
| Kidney disease | 2.8% |
| Pulmonary disease | 7.0% |
| Cancer | 7.4% |
| Behavior / access | % |
|---|---|
| Binge drinking | 15.8% |
| No physical activity | 23.0% |
| Less than 7 hrs sleep | 30.8% |
| Fair or poor health | 13.0% |
| Poor mental health | 12.3% |
| Poor physical health | 9.5% |
| No health insurance | 9.8% |
| Visited doctor (checkup) | 76.9% |
| Visited dentist | 66.1% |
| Cholesterol screening | 90.5% |
| Teeth loss | 12.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 740 | 5.8% |
| Disability | % |
|---|---|
| Any disability | 17.4% |
| Under 18 | 10.1% |
| 18–64 years | 10.6% |
| 65 and over | 42.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 70.1% |
| Public insurance | 38.2% |
| Uninsured under 19 | 2.8% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 16,109 | 95.3% |
| Spanish | 91 | 0.5% |
| Other Indo-European | 65 | 0.3% |
| Asian & Pacific Islander | 6 | 0.0% |
| Other languages | 20 | 0.2% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 16,901 | 99.0% |
| Born in same state | 16,804 | 98.5% |
| Born in different state | 14,121 | 84.2% |
| Foreign born | 97 | 0.5% |
| Naturalized citizen | 130 | 1.0% |
| Not a US citizen | 86 | 44.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 2,631 | 15.4% |
| Italian | 2,322 | 13.6% |
| Arab | 1,246 | 7.3% |
| English | 276 | 1.6% |
| Polish | 231 | 1.4% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 102 | 0.6% |
| German | 26 | 0.2% |
| Dutch | 7 | 0% |
| Norwegian | 3 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.9% |
| Internet access | 93.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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