61478 ZIP Code — Smithshire, IL

Warren County, Illinois

ZIP code 61478 is located in Smithshire, Illinois, within Warren County. It covers approximately 34.45 square miles and serves a population of 383 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 309.

About ZIP code 61478

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $71,800.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry.

College attainment at 7% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 61478 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and high homeownership.

383

population

34.45

sq mi land

Standard

ZIP type

Central (CT)

timezone

61478 ZIP code map

Cities in ZIP code 61478

Below are the cities the US Postal Service accepts for ZIP code 61478. Using any city not on this list may result in mail delivery delays.

City	Status
Smithshire	Acceptable
Smithshire	Preferred

Nearby ZIP codes

61473 Roseville (5 mi) 61460 Media (5.6 mi) 61447 Kirkwood (7.7 mi) 61418 Biggsville (8.9 mi) 61417 Berwick (11.2 mi) 61475 Sciota (11.5 mi) 61480 Stronghurst (11.5 mi) 61462 Monmouth (12.1 mi) 61438 Good Hope (12.9 mi) 61420 Blandinsville (14.8 mi) 61423 Cameron (15.1 mi) 61437 Gladstone (15.2 mi)

Demographics updated 05/2026

Population
Total population	383
Population density	11 / sq mi
State FIPS	17
County FIPS	187

Geography
Land area	34.45 sq mi
Water area	0.00 sq mi
Latitude	40.7499
Longitude	-90.7410
Timezone	Central (CT)
Area code	309

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	11.1%	44.2%	37.2%
$50k – $100k	31.1%	36.3%	29.6%
$100k – $200k	57.8%	16.3%	24.4%
Over $200k	0.0%	3.2%	8.8%

Demographics & statistics

383

Population

People per sq mi

15.3

Median age

Median household income

$29,782

Per capita income

$71,800

Median home value

Median monthly rent

100.0%

Home ownership

41.5%

Poverty rate

0.0%

Unemployment

116

Housing units

7.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	220	57.4%
18 and over	163	42.6%
65 and over	28	7.3%
Median age	15.3 years

Race & ethnicity

White 100%

Group	Count	%
White	383	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	11.1%	44.2%	37.2%
$50k – $100k	31.1%	36.3%	29.6%
$100k – $200k	57.8%	16.3%	24.4%
Over $200k	0.0%	3.2%	8.8%

$50k–$75k 53.4%

$100k–$150k 42.2%

$200k+ 4.3%

Range	% of households
$50k–$75k	53.4%
$100k–$150k	42.2%
$200k+	4.3%
Median income	$0

Housing

Home values

Under $50k 44.8%

$50k–$100k 28.4%

$150k–$200k 8.6%

$500k–$1M 18.1%

Housing overview

Metric	Value
Median home value	$71,800
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	0.0%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.3
Avg household size (owned)	3.30

Year built

Era	%
2020 or later	0.0%
2010–2019	18.1%
2000–2009	0.0%
1990–1999	0.0%
1980–1989	0.0%
1970–1979	24.1%
1960–1969	0.0%
1950–1959	4.3%
1940–1949	0.0%
1939 or earlier	53.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	33.6%
3 bedrooms	37.1%
4 bedrooms	18.1%
5+ bedrooms	11.2%

Vehicles per household

Vehicles	% of households
No vehicle	19.8%
1 vehicle	0.0%
2 vehicles	42.2%
3 or more	37.9%

Heating fuel

Fuel type	%
Utility gas	37.9%
Propane / LP gas	50.9%
Wood	11.2%

Households & families

Household type	Count	%
Married-couple family	49	42.2%
Cohabiting couple	0	0.0%
Male householder, no spouse	67	57.8%
Female householder, no spouse	0	0.0%
Households with children under 18	83	71.6%
Households with seniors (65+)	28	24.1%
Average household size	3.30

Marital status

Status	Male	Female
Never married	45.3%	25.4%
Married	34.3%	74.6%
Separated	0.0%	0.0%
Widowed	20.4%	0.0%
Divorced	0.0%	0.0%

Education

Less than 9th grade 47.3%

Some HS, no diploma 0.0%

HS graduate 0.0%

Some college, no degree 18.9%

Associate's degree 26.4%

Bachelor's degree 3.4%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	52.7%
Bachelor's or higher	7.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	11	11.0%
Kindergarten	12	12.0%
Elementary school	62	62.0%
High school	15	15.0%
College / grad school	0	0.0%

Employment

Industry of employment

Professional & management 50.0%

Construction 19.2%

Manufacturing 16.7%

Wholesale trade 7.7%

Public administration 6.4%

Occupation

Category	%
Management, business & arts	74.4%
Service	0.0%
Sales & office	6.4%
Natural resources & construction	19.2%
Production & transportation	0.0%

Employment type

Type	%
Private sector	76.9%
Government	6.4%
Self-employed	16.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	70.5%
Carpool	12.8%
Public transit	0.0%
Walk	0.0%
Work from home	16.7%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 41.5%

Under 18 years 61.8%

18 and over 14.1%

Married-couple families 26.5%

Female-led households 0.0%

Income support

Source	% of households
Social Security	24.1%
Retirement income	24.1%
Supplemental Security	11.2%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	33.8%
High blood pressure	36.5%
High cholesterol	38.4%
Diabetes	10.7%
Heart disease	8.0%
Stroke	3.6%
Asthma	9.3%
Arthritis	30.6%
Kidney disease	3.4%
Pulmonary disease	7.9%
Cancer	8.7%

Behavior / access	%
Smoking	16.6%
Binge drinking	13.6%
No physical activity	24.9%
Less than 7 hrs sleep	30.1%
Depression	16.8%
Fair or poor health	14.4%
Poor mental health	11.8%
Poor physical health	10.3%
No health insurance	9.3%
Visited doctor (checkup)	78.5%
Visited dentist	65.1%
Cholesterol screening	91.4%
Teeth loss	14.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	0.0%
Under 18	0.0%
18–64 years	0.0%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	51.2%
Public insurance	43.1%
No insurance	13.1%
Uninsured under 19	4.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	299	78.1%
Spanish	36	12.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	36	12.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	383	100.0%
Born in same state	383	100.0%
Born in different state	161	42.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Technology access

Metric	% of households
Computer access	30.3%
Internet access	80.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 61478

What city is ZIP code 61478 in?

ZIP code 61478 is primarily assigned to Smithshire, Illinois.

What county is ZIP code 61478 in?

ZIP code 61478 falls within Warren County, Illinois.

Is ZIP code 61478 family-oriented?

57% of residents in ZIP code 61478 are under 18, reflecting a younger, family-oriented community.

What is the poverty rate in ZIP code 61478?

42% of residents in ZIP code 61478 live below the poverty line, above the national average.

How educated is the population of ZIP code 61478?

7% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the typical home value in ZIP code 61478?

The median home value in ZIP code 61478 is $71,800.

What timezone is ZIP code 61478 in?

ZIP code 61478 observes the CST timezone.