61360 ZIP Code — Seneca, IL

La Salle County, Illinois

ZIP code 61360 is located in Seneca, Illinois, within La Salle County. It covers approximately 47.40 square miles and serves a population of 3,379 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 815.

About ZIP code 61360

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $225,900. Owner-occupancy is high at 79%, well above the national average.

Median household income is $91,822. 36% 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 26 minutes is near the national average.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 61360 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

3,379

population

47.40

sq mi land

Standard

ZIP type

Central (CT)

timezone

61360 ZIP code map

Cities in ZIP code 61360

Below are the cities the US Postal Service accepts for ZIP code 61360. Using any city not on this list may result in mail delivery delays.

City	Status
Seneca	Acceptable
Seneca	Preferred

Nearby ZIP codes

61341 Marseilles (5 mi) 60479 Verona (9.3 mi) 60450 Morris (9.9 mi) 60470 Ransom (11.9 mi) 60549 Serena (12.3 mi) 61325 Grand Ridge (12.6 mi) 60437 Kinsman (12.9 mi) 61350 Ottawa (12.9 mi) 60444 Mazon (13.4 mi) 60551 Sheridan (13.5 mi) 60541 Newark (13.8 mi) 60416 Coal City (17.6 mi)

Demographics updated 05/2026

Population
Total population	3,379
Population density	71 / sq mi
State FIPS	17
County FIPS	099

Geography
Land area	47.40 sq mi
Water area	0.37 sq mi
Latitude	41.3407
Longitude	-88.6131
Timezone	Central (CT)
Area code	815

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.3%	42.9%	37.2%
$50k – $100k	36.5%	33.7%	29.6%
$100k – $200k	30.7%	20.0%	24.4%
Over $200k	5.4%	3.4%	8.8%

Demographics & statistics

3,379

Population

People per sq mi

43.2

Median age

$91,822

Median household income

$41,891

Per capita income

$225,900

Median home value

$1,028

Median monthly rent

79.1%

Home ownership

15.7%

Poverty rate

4.9%

Unemployment

1,075

Housing units

14.6%

Bachelor's or higher

Age distribution

Male Female

106

Under 5

101

138

5–9

130

105

10–14

104

15–19

20–24

240

25–34

226

124

35–44

117

212

45–54

200

206

55–59

194

160

60–64

152

222

65–74

209

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	798	23.6%
18 and over	2,581	76.4%
65 and over	542	16.0%
Median age	43.2 years

Race & ethnicity

White 88.7%

Two or more races 5%

Hispanic or Latino 4.3%

Other race 1.2%

Black or African American 0.7%

Group	Count	%
White	3,131	88.7%
Two or more races	178	5%
Hispanic or Latino	150	4.3%
Other race	44	1.2%
Black or African American	26	0.7%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.3%	42.9%	37.2%
$50k – $100k	36.5%	33.7%	29.6%
$100k – $200k	30.7%	20.0%	24.4%
Over $200k	5.4%	3.4%	8.8%

Under $10k 0.9%

$10k–$15k 4.4%

$15k–$25k 3.0%

$25k–$35k 3.9%

$35k–$50k 8.6%

$50k–$75k 18.8%

$75k–$100k 16.8%

$100k–$150k 18.6%

$150k–$200k 11.0%

$200k+ 14.0%

Range	% of households
Under $10k	0.9%
$10k–$15k	4.4%
$15k–$25k	3.0%
$25k–$35k	3.9%
$35k–$50k	8.6%
$50k–$75k	18.8%
$75k–$100k	16.8%
$100k–$150k	18.6%
$150k–$200k	11.0%
$200k+	14.0%
Median income	$91,822

Housing

Home values

Under $50k 7.1%

$50k–$100k 4.7%

$100k–$150k 12.3%

$150k–$200k 17.6%

$200k–$300k 27.7%

$300k–$500k 28.1%

$500k–$1M 2.5%

Housing overview

Metric	Value
Median home value	$225,900
Median rent / month	$1,028
Owner occupied	79.1%
Renter occupied	20.9%
Vacant	4.1%
Single-family detached	84.6%
Large apartment buildings	0.0%
Mobile homes	6.9%
Median rooms	6.0
Avg household size (owned)	2.60

Year built

Era	%
2020 or later	0.0%
2010–2019	2.5%
2000–2009	19.6%
1990–1999	15.8%
1980–1989	10.5%
1970–1979	9.0%
1960–1969	9.8%
1950–1959	8.6%
1940–1949	5.1%
1939 or earlier	19.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	5.4%
2 bedrooms	20.1%
3 bedrooms	43.6%
4 bedrooms	23.3%
5+ bedrooms	7.3%

Vehicles per household

Vehicles	% of households
No vehicle	0.9%
1 vehicle	22.5%
2 vehicles	44.5%
3 or more	32.1%

Heating fuel

Fuel type	%
Utility gas	68.5%
Electricity	11.3%
Propane / LP gas	19.7%
Wood	0.5%

Households & families

Household type	Count	%
Married-couple family	762	59.1%
Cohabiting couple	123	9.5%
Male householder, no spouse	197	15.3%
Female householder, no spouse	208	16.1%
Households with children under 18	373	28.9%
Households with seniors (65+)	353	27.4%
Average household size	2.62

Marital status

Status	Male	Female
Never married	29.7%	19.3%
Married	55.2%	59.5%
Separated	5.2%	1.6%
Widowed	0.1%	5.7%
Divorced	9.7%	13.9%

Education

Less than 9th grade 0.1%

Some HS, no diploma 4.7%

HS graduate 40.5%

Some college, no degree 24.9%

Associate's degree 15.2%

Bachelor's degree 12.1%

Graduate / professional 2.4%

Metric	%
HS diploma or higher	95.2%
Bachelor's or higher	14.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	35	4.9%
Kindergarten	66	9.2%
Elementary school	352	49.0%
High school	161	22.4%
College / grad school	105	14.6%

Employment

Industry of employment

Education & healthcare 20.0%

Transportation & utilities 16.7%

Manufacturing 14.0%

Retail trade 10.7%

Construction 9.7%

Public administration 8.4%

Other services 5.9%

Arts, food & hospitality 5.2%

Professional & management 4.7%

Finance & real estate 3.5%

Wholesale trade 0.6%

Agriculture & mining 0.3%

Information 0.2%

Occupation

Category	%
Management, business & arts	23.7%
Service	22.7%
Sales & office	15.2%
Natural resources & construction	16.8%
Production & transportation	21.5%

Employment type

Type	%
Private sector	85.1%
Government	13.0%
Self-employed	1.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.2%
Carpool	7.7%
Public transit	0.0%
Walk	2.9%
Work from home	5.2%
Other means	0.0%
Avg commute (minutes)	25.6

Poverty

All people 15.7%

Under 18 years 30.2%

18 and over 11.2%

Married-couple families 6.8%

Female-led households 35.3%

Income support

Source	% of households
Social Security	35.5%
Retirement income	36.0%
Supplemental Security	8.0%
Cash public assistance	2.2%
Food stamps / SNAP	12.2%

Health indicators

Condition	%
Obesity	34.6%
High blood pressure	31.6%
High cholesterol	32.4%
Diabetes	9.5%
Heart disease	6.2%
Stroke	2.9%
Asthma	9.8%
Arthritis	25.5%
Kidney disease	2.7%
Pulmonary disease	7.2%
Cancer	6.5%

Behavior / access	%
Smoking	19.7%
Binge drinking	16.3%
No physical activity	23.9%
Less than 7 hrs sleep	33.4%
Depression	18.3%
Fair or poor health	13.8%
Poor mental health	13.3%
Poor physical health	10.0%
No health insurance	10.9%
Visited doctor (checkup)	75.2%
Visited dentist	64.7%
Cholesterol screening	88.8%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	238	9.2%

Disability	%
Any disability	13.1%
Under 18	1.3%
18–64 years	11.3%
65 and over	37.5%

Health insurance coverage

Type	%
Private insurance	72.3%
Public insurance	39.2%
No insurance	4.4%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,172	93.9%
Spanish	32	1.0%
Other Indo-European	17	0.5%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,338	98.8%
Born in same state	3,332	98.6%
Born in different state	2,805	83.0%
Foreign born	6	0.2%
Naturalized citizen	41	1.2%
Not a US citizen	41	100.0%

Ancestry

Ancestry	Count	%
Italian	819	24.2%
French	295	8.7%
Polish	225	6.7%
Arab	154	4.6%

Ancestry	Count	%
English	66	2%
German	10	0.3%
Norwegian	3	0.1%

Technology access

Metric	% of households
Computer access	38.2%
Internet access	96.4%

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

Frequently asked questions about ZIP code 61360

What city is ZIP code 61360 in?

ZIP code 61360 is primarily assigned to Seneca, Illinois.

What county is ZIP code 61360 in?

ZIP code 61360 falls within La Salle County, Illinois.

How educated is the population of ZIP code 61360?

15% 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 61360?

16% of residents in ZIP code 61360 live below the poverty line, above the national average.

Does ZIP code 61360 have a large retiree population?

36% of households in ZIP code 61360 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 61360 have a large veteran population?

9% of civilians in ZIP code 61360 are veterans, above the national average of ~7%.

What timezone is ZIP code 61360 in?

ZIP code 61360 observes the CST timezone.