61477 ZIP Code — Smithfield, IL

Fulton County, Illinois

ZIP code 61477 is located in Smithfield, Illinois, within Fulton County. It covers approximately 50.82 square miles and serves a population of 499 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 309.

About ZIP code 61477

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 $137,500. Owner-occupancy is high at 97%, well above the national average.

Median household income is $56,250. Poverty affects 18% of residents, above the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 33 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 61477 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

499

population

50.82

sq mi land

Standard

ZIP type

Central (CT)

timezone

61477 ZIP code map

Cities in ZIP code 61477

Below are the cities the US Postal Service accepts for ZIP code 61477. Using any city not on this list may result in mail delivery delays.

City	Status
Smithfield	Acceptable
Smithfield	Preferred

Nearby ZIP codes

61459 Marietta (5 mi) 61427 Cuba (6.1 mi) 61431 Ellisville (6.9 mi) 61482 Table Grove (8.3 mi) 61441 Ipava (10.7 mi) 61415 Avon (11.5 mi) 61422 Bushnell (12.1 mi) 61411 Adair (12.2 mi) 61470 Prairie City (12.6 mi) 61542 Lewistown (13.2 mi) 61432 Fairview (13.8 mi) 61484 Vermont (13.9 mi)

Demographics updated 05/2026

Population
Total population	499
Population density	10 / sq mi
State FIPS	17
County FIPS	057

Geography
Land area	50.82 sq mi
Water area	0.03 sq mi
Latitude	40.4943
Longitude	-90.3134
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	50.7%	47.2%	37.2%
$50k – $100k	33.8%	30.9%	29.6%
$100k – $200k	15.5%	18.2%	24.4%
Over $200k	0.0%	3.6%	8.8%

Demographics & statistics

499

Population

People per sq mi

47.3

Median age

$56,250

Median household income

$28,251

Per capita income

$137,500

Median home value

Median monthly rent

97.1%

Home ownership

17.8%

Poverty rate

18.9%

Unemployment

229

Housing units

11.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	68	13.6%
18 and over	431	86.4%
65 and over	82	16.4%
Median age	47.3 years

Race & ethnicity

White 87.2%

Two or more races 12.6%

American Indian / Alaska Native 0.2%

Group	Count	%
White	435	87.2%
Two or more races	63	12.6%
American Indian / Alaska Native	1	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	50.7%	47.2%	37.2%
$50k – $100k	33.8%	30.9%	29.6%
$100k – $200k	15.5%	18.2%	24.4%
Over $200k	0.0%	3.6%	8.8%

Under $10k 5.8%

$10k–$15k 1.9%

$15k–$25k 11.2%

$25k–$35k 11.2%

$35k–$50k 19.4%

$50k–$75k 14.6%

$75k–$100k 13.6%

$100k–$150k 16.0%

$150k–$200k 4.4%

$200k+ 1.9%

Range	% of households
Under $10k	5.8%
$10k–$15k	1.9%
$15k–$25k	11.2%
$25k–$35k	11.2%
$35k–$50k	19.4%
$50k–$75k	14.6%
$75k–$100k	13.6%
$100k–$150k	16.0%
$150k–$200k	4.4%
$200k+	1.9%
Median income	$56,250

Housing

Home values

Under $50k 27.0%

$50k–$100k 15.0%

$100k–$150k 10.5%

$150k–$200k 20.5%

$200k–$300k 10.0%

$300k–$500k 4.5%

$500k–$1M 12.5%

Housing overview

Metric	Value
Median home value	$137,500
Median rent / month	$0
Owner occupied	97.1%
Renter occupied	2.9%
Vacant	12.3%
Single-family detached	91.9%
Large apartment buildings	0.0%
Mobile homes	7.2%
Median rooms	6.1
Avg household size (owned)	2.41

Year built

Era	%
2020 or later	0.0%
2010–2019	3.0%
2000–2009	5.1%
1990–1999	8.9%
1980–1989	1.3%
1970–1979	16.6%
1960–1969	3.4%
1950–1959	3.0%
1940–1949	15.3%
1939 or earlier	43.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	6.4%
2 bedrooms	28.5%
3 bedrooms	58.7%
4 bedrooms	3.4%
5+ bedrooms	1.7%

Vehicles per household

Vehicles	% of households
No vehicle	4.4%
1 vehicle	24.8%
2 vehicles	35.9%
3 or more	35.0%

Heating fuel

Fuel type	%
Utility gas	33.0%
Electricity	13.1%
Propane / LP gas	35.0%
Wood	2.9%
No fuel used	4.9%

Households & families

Household type	Count	%
Married-couple family	90	43.7%
Cohabiting couple	19	9.2%
Male householder, no spouse	48	23.3%
Female householder, no spouse	49	23.8%
Households with children under 18	35	17.0%
Households with seniors (65+)	66	32.0%
Average household size	2.42

Marital status

Status	Male	Female
Never married	38.9%	7.0%
Married	39.3%	41.1%
Separated	0.0%	0.0%
Widowed	7.0%	9.3%
Divorced	14.8%	42.5%

Education

Less than 9th grade 3.8%

Some HS, no diploma 2.2%

HS graduate 36.5%

Some college, no degree 23.8%

Associate's degree 21.9%

Bachelor's degree 10.3%

Graduate / professional 1.4%

Metric	%
HS diploma or higher	94.0%
Bachelor's or higher	11.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	20	35.1%
Kindergarten	2	3.5%
Elementary school	22	38.6%
High school	11	19.3%
College / grad school	2	3.5%

Employment

Industry of employment

Education & healthcare 31.3%

Agriculture & mining 18.2%

Manufacturing 15.2%

Public administration 14.1%

Construction 11.1%

Transportation & utilities 4.0%

Arts, food & hospitality 2.0%

Wholesale trade 1.0%

Retail trade 1.0%

Other services 1.0%

Finance & real estate 0.5%

Professional & management 0.5%

Occupation

Category	%
Management, business & arts	49.0%
Service	15.2%
Sales & office	4.5%
Natural resources & construction	26.3%
Production & transportation	5.1%

Employment type

Type	%
Private sector	50.5%
Government	34.3%
Self-employed	15.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	76.5%
Carpool	4.8%
Public transit	0.0%
Walk	0.0%
Work from home	18.7%
Other means	0.0%
Avg commute (minutes)	32.5

Poverty

All people 17.8%

Under 18 years 13.2%

18 and over 18.6%

Married-couple families 8.9%

Female-led households 0.0%

Income support

Source	% of households
Social Security	37.9%
Retirement income	29.1%
Supplemental Security	0.0%
Cash public assistance	1.5%
Food stamps / SNAP	6.3%

Health indicators

Condition	%
Obesity	37.1%
High blood pressure	39.3%
High cholesterol	37.2%
Diabetes	12.4%
Heart disease	8.6%
Stroke	4.0%
Asthma	9.9%
Arthritis	32.7%
Kidney disease	3.6%
Pulmonary disease	9.4%
Cancer	8.4%

Behavior / access	%
Smoking	19.8%
Binge drinking	13.7%
No physical activity	27.6%
Less than 7 hrs sleep	32.6%
Depression	17.7%
Fair or poor health	17.1%
Poor mental health	12.6%
Poor physical health	11.9%
No health insurance	10.5%
Visited doctor (checkup)	78.4%
Visited dentist	62.6%
Cholesterol screening	90.9%
Teeth loss	15.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	35	8.1%

Disability	%
Any disability	19.8%
Under 18	8.8%
18–64 years	17.2%
65 and over	40.2%

Health insurance coverage

Type	%
Private insurance	66.9%
Public insurance	42.3%
No insurance	2.2%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	475	95.2%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	499	100.0%
Born in same state	499	100.0%
Born in different state	443	88.8%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	66	13.2%
French	57	11.4%

Ancestry	Count	%
Italian	37	7.4%
English	8	1.6%

Technology access

Metric	% of households
Computer access	41.3%
Internet access	87.4%

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

Frequently asked questions about ZIP code 61477

What city is ZIP code 61477 in?

ZIP code 61477 is primarily assigned to Smithfield, Illinois.

What county is ZIP code 61477 in?

ZIP code 61477 falls within Fulton County, Illinois.

Is ZIP code 61477 mostly owner-occupied?

97% of occupied units in ZIP code 61477 are owner-occupied, well above the national average.

How educated is the population of ZIP code 61477?

12% 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 poverty rate in ZIP code 61477?

18% of residents in ZIP code 61477 live below the poverty line, above the national average.

Does ZIP code 61477 have a large retiree population?

38% of households in ZIP code 61477 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 61477 in?

ZIP code 61477 observes the CST timezone.