62666 ZIP Code — Middletown, IL

Logan County, Illinois

ZIP code 62666 is located in Middletown, Illinois, within Logan County. It covers approximately 31.47 square miles and serves a population of 517 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 217.

About ZIP code 62666

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 $93,900. Owner-occupancy is high at 79%, well above the national average.

Median household income is $87,750. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 30 minutes is near the national average.

College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

Overall, ZIP code 62666 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

517

population

31.47

sq mi land

Standard

ZIP type

Central (CT)

timezone

62666 ZIP code map

Cities in ZIP code 62666

Below are the cities the US Postal Service accepts for ZIP code 62666. Using any city not on this list may result in mail delivery delays.

City	Status
Middletown	Preferred

Nearby ZIP codes

62671 New Holland (5.1 mi) 62634 Elkhart (6.1 mi) 62642 Greenview (6.4 mi) 62693 Williamsville (9.3 mi) 62613 Athens (9.8 mi) 62656 Lincoln (10.1 mi) 62643 Hartsburg (12.1 mi) 62664 Mason City (12.1 mi) 62684 Sherman (12.2 mi) 62635 Emden (13.3 mi) 62625 Cantrall (14.3 mi) 62682 San Jose (14.7 mi)

Demographics updated 05/2026

Population
Total population	517
Population density	16 / sq mi
State FIPS	17
County FIPS	107

Geography
Land area	31.47 sq mi
Water area	0.05 sq mi
Latitude	40.0875
Longitude	-89.5473
Timezone	Central (CT)
Area code	217

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.6%	43.6%	37.2%
$50k – $100k	41.2%	32.6%	29.6%
$100k – $200k	29.1%	19.7%	24.4%
Over $200k	2.0%	4.0%	8.8%

Demographics & statistics

517

Population

People per sq mi

41.9

Median age

$87,750

Median household income

$33,860

Per capita income

$93,900

Median home value

$747

Median monthly rent

78.6%

Home ownership

12.2%

Poverty rate

2.0%

Unemployment

211

Housing units

18.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	131	25.3%
18 and over	386	74.7%
65 and over	61	11.8%
Median age	41.9 years

Race & ethnicity

White 95.6%

Two or more races 3.6%

Hispanic or Latino 0.8%

Group	Count	%
White	498	95.6%
Two or more races	19	3.6%
Hispanic or Latino	4	0.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.6%	43.6%	37.2%
$50k – $100k	41.2%	32.6%	29.6%
$100k – $200k	29.1%	19.7%	24.4%
Over $200k	2.0%	4.0%	8.8%

Under $10k 1.5%

$10k–$15k 3.1%

$15k–$25k 9.7%

$25k–$35k 7.7%

$35k–$50k 6.1%

$50k–$75k 17.3%

$75k–$100k 15.3%

$100k–$150k 26.0%

$150k–$200k 11.2%

$200k+ 2.0%

Range	% of households
Under $10k	1.5%
$10k–$15k	3.1%
$15k–$25k	9.7%
$25k–$35k	7.7%
$35k–$50k	6.1%
$50k–$75k	17.3%
$75k–$100k	15.3%
$100k–$150k	26.0%
$150k–$200k	11.2%
$200k+	2.0%
Median income	$87,750

Housing

Home values

Under $50k 18.8%

$50k–$100k 40.3%

$100k–$150k 5.8%

$150k–$200k 1.9%

$200k–$300k 18.2%

$300k–$500k 14.9%

Housing overview

Metric	Value
Median home value	$93,900
Median rent / month	$747
Owner occupied	78.6%
Renter occupied	21.4%
Vacant	22.5%
Single-family detached	92.9%
Large apartment buildings	0.0%
Mobile homes	7.1%
Median rooms	6.0
Avg household size (owned)	2.69

Year built

Era	%
2020 or later	0.0%
2010–2019	1.6%
2000–2009	3.2%
1990–1999	7.5%
1980–1989	13.4%
1970–1979	12.3%
1960–1969	4.0%
1950–1959	6.3%
1940–1949	13.8%
1939 or earlier	37.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	1.6%
2 bedrooms	33.6%
3 bedrooms	37.9%
4 bedrooms	20.2%
5+ bedrooms	6.3%

Vehicles per household

Vehicles	% of households
No vehicle	3.6%
1 vehicle	21.4%
2 vehicles	39.8%
3 or more	35.2%

Heating fuel

Fuel type	%
Utility gas	54.1%
Electricity	15.8%
Propane / LP gas	24.0%
Wood	3.6%
No fuel used	2.6%

Households & families

Household type	Count	%
Married-couple family	125	63.8%
Cohabiting couple	21	10.7%
Male householder, no spouse	16	8.2%
Female householder, no spouse	34	17.3%
Households with children under 18	63	32.1%
Households with seniors (65+)	52	26.5%
Average household size	2.64

Marital status

Status	Male	Female
Never married	21.7%	6.5%
Married	61.8%	62.5%
Separated	3.4%	4.0%
Widowed	1.0%	11.5%
Divorced	12.1%	15.5%

Education

Less than 9th grade 1.9%

Some HS, no diploma 5.9%

HS graduate 34.1%

Some college, no degree 23.2%

Associate's degree 16.5%

Bachelor's degree 17.3%

Graduate / professional 1.1%

Metric	%
HS diploma or higher	92.3%
Bachelor's or higher	18.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	9	7.3%
Kindergarten	3	2.4%
Elementary school	77	62.6%
High school	24	19.5%
College / grad school	10	8.1%

Employment

Industry of employment

Education & healthcare 18.5%

Construction 16.9%

Public administration 14.4%

Other services 9.1%

Agriculture & mining 7.8%

Arts, food & hospitality 7.8%

Manufacturing 7.0%

Professional & management 5.8%

Retail trade 4.1%

Transportation & utilities 3.7%

Finance & real estate 2.9%

Information 1.2%

Wholesale trade 0.8%

Occupation

Category	%
Management, business & arts	19.3%
Service	24.7%
Sales & office	21.8%
Natural resources & construction	15.6%
Production & transportation	18.5%

Employment type

Type	%
Private sector	63.8%
Government	27.2%
Self-employed	9.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.0%
Carpool	7.5%
Public transit	0.0%
Walk	0.4%
Work from home	4.1%
Other means	0.0%
Avg commute (minutes)	29.5

Poverty

All people 12.2%

Under 18 years 11.5%

18 and over 12.4%

Married-couple families 6.4%

Female-led households 50.0%

Income support

Source	% of households
Social Security	35.7%
Retirement income	30.6%
Supplemental Security	7.7%
Cash public assistance	1.5%
Food stamps / SNAP	15.3%

Health indicators

Condition	%
Obesity	34.8%
High blood pressure	33.2%
High cholesterol	33.5%
Diabetes	10.1%
Heart disease	6.7%
Stroke	3.1%
Asthma	10.0%
Arthritis	27.8%
Kidney disease	2.9%
Pulmonary disease	7.9%
Cancer	7.1%

Behavior / access	%
Smoking	20.1%
Binge drinking	15.8%
No physical activity	25.1%
Less than 7 hrs sleep	32.2%
Depression	18.6%
Fair or poor health	14.9%
Poor mental health	13.5%
Poor physical health	10.5%
No health insurance	11.6%
Visited doctor (checkup)	75.4%
Visited dentist	62.9%
Cholesterol screening	89.5%
Teeth loss	15.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	14	3.6%

Disability	%
Any disability	12.6%
Under 18	0.0%
18–64 years	12.9%
65 and over	37.7%

Health insurance coverage

Type	%
Private insurance	73.1%
Public insurance	34.6%
No insurance	2.9%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	488	94.4%
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)	517	100.0%
Born in same state	517	100.0%
Born in different state	460	89.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	39	7.5%
Italian	35	6.8%
French	17	3.3%

Ancestry	Count	%
English	14	2.7%
Irish	3	0.6%
Polish	3	0.6%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	91.8%

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

Frequently asked questions about ZIP code 62666

What city is ZIP code 62666 in?

ZIP code 62666 is primarily assigned to Middletown, Illinois.

What county is ZIP code 62666 in?

ZIP code 62666 falls within Logan County, Illinois.

Does ZIP code 62666 have a large retiree population?

36% of households in ZIP code 62666 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 62666?

The median home value in ZIP code 62666 is $93,900.

What is the population of ZIP code 62666?

ZIP code 62666 has an estimated population of 517 residents, with a density of 16 people per square mile.

What is the median household income in ZIP code 62666?

The median household income in ZIP code 62666 is $87,750, above the national median of ~$75,000.

What timezone is ZIP code 62666 in?

ZIP code 62666 observes the CST timezone.