Mason City ZIP Codes — Mason County, IL

There is one unique ZIP code in Mason City, Illinois and it is 62664. Area code: 217.

ZIP codes

106.98

sq mi land

0.27

sq mi water

217

area code

Mason City, IL ZIP code map

About Mason City, IL

Mason City, Illinois, is a small yet vibrant city located in Mason County. Known for its charming atmosphere and tight-knit community, it offers residents a peaceful lifestyle away from the hustle and bustle of larger urban centers. The city features a variety of local businesses, parks, and recreational opportunities that contribute to its unique character.

Location & geography

Mason City lies in the central part of Illinois, surrounded by picturesque landscapes typical of the Midwest. The city is approximately 12 miles southeast of Lincoln and about 30 miles north of the state capital, Springfield, making it a convenient location for those who enjoy a quieter life while still having access to city amenities. Covering a total land area of 106.98 square miles, Mason City also has a small water area of 0.27 square miles, enhancing its natural charm.

Community & economy

The character of Mason City is defined by its friendly residents and a strong sense of community pride. The local economy is supported by agriculture and small businesses, which play a significant role in the livelihood of its inhabitants. Daily life in Mason City is enriched by various community events, outdoor activities, and the warmth of local gatherings.

Transportation

Mason City is served by several highways, making it easily accessible for both residents and visitors. The nearest major highway is U.S. Route 136, which connects the city to larger road networks. For air travel, the closest major airport is Abraham Lincoln Capital Airport in Springfield, providing regional flight options.

History

Mason City was founded in the mid-19th century and has a rich history rooted in agriculture and trade. Over the years, it developed into a service center for the surrounding farming communities, which significantly shaped its growth. Notable events in its history include the construction of various historical buildings that showcase its architectural heritage.

Did you know?

One surprising fact about Mason City is that it is home to the historic McLean County Courthouse, which reflects the architectural styles of the late 19th century. Additionally, the city is known for its scenic landscapes that attract nature enthusiasts and photographers alike.

ZIP codes for Mason City, IL (1)

ZIP code	City	County	Map
62664	Mason City	Mason	View map

Demographics & statistics

2,945

Population

46.2

Median age

$68,013

Median household income

$38,172

Per capita income

$96,900

Median home value

$696

Median monthly rent

79.5%

Home ownership

15.6%

Poverty rate

1.8%

Unemployment

1,155

Housing units

21.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

100

5–9

105

10–14

104

15–19

111

20–24

116

25–34

123

163

35–44

173

172

45–54

182

101

55–59

107

117

60–64

123

197

65–74

208

101

75–84

106

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	667	22.6%
18 and over	2,278	77.4%
65 and over	686	23.3%
Median age	46.2 years

Race & ethnicity

White 93.7%

Two or more races 2.3%

Hispanic or Latino 1.1%

Other race 1.1%

Black or African American 1%

Asian 0.7%

Group	Count	%
White	2,792	93.7%
Two or more races	70	2.3%
Hispanic or Latino	34	1.1%
Other race	34	1.1%
Black or African American	29	1%
Asian	20	0.7%

Household income

Under $10k 3.0%

$10k–$15k 7.0%

$15k–$25k 7.9%

$25k–$35k 12.0%

$35k–$50k 11.3%

$50k–$75k 15.5%

$75k–$100k 15.5%

$100k–$150k 13.1%

$150k–$200k 7.3%

$200k+ 7.5%

Range	% of households
Under $10k	3.0%
$10k–$15k	7.0%
$15k–$25k	7.9%
$25k–$35k	12.0%
$35k–$50k	11.3%
$50k–$75k	15.5%
$75k–$100k	15.5%
$100k–$150k	13.1%
$150k–$200k	7.3%
$200k+	7.5%
Median income	$68,013

Housing

Home values

Under $50k 12.7%

$50k–$100k 41.1%

$100k–$150k 26.1%

$150k–$200k 11.4%

$200k–$300k 8.0%

$300k–$500k 0.7%

Housing overview

Metric	Value
Median home value	$96,900
Median rent / month	$696
Owner occupied	79.5%
Renter occupied	20.5%
Vacant	9.3%
Single-family detached	89.6%
Large apartment buildings	0.0%
Mobile homes	3.3%
Median rooms	6.4
Avg household size (owned)	2.31

Year built

Era	%
2020 or later	0.0%
2010–2019	2.9%
2000–2009	1.6%
1990–1999	7.1%
1980–1989	3.5%
1970–1979	16.1%
1960–1969	8.5%
1950–1959	12.7%
1940–1949	6.2%
1939 or earlier	41.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	6.1%
2 bedrooms	25.1%
3 bedrooms	48.2%
4 bedrooms	17.5%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	5.4%
1 vehicle	31.2%
2 vehicles	35.3%
3 or more	28.1%

Heating fuel

Fuel type	%
Utility gas	64.1%
Electricity	21.5%
Propane / LP gas	14.0%

Households & families

Household type	Count	%
Married-couple family	619	48.1%
Cohabiting couple	85	6.6%
Male householder, no spouse	254	19.8%
Female householder, no spouse	328	25.5%
Households with children under 18	361	28.1%
Households with seniors (65+)	449	34.9%
Average household size	2.24

Marital status

Status	Male	Female
Never married	27.4%	22.7%
Married	54.6%	50.9%
Separated	4.1%	0.9%
Widowed	9.2%	10.9%
Divorced	4.6%	14.6%

Education

Less than 9th grade 4.1%

Some HS, no diploma 5.7%

HS graduate 35.1%

Some college, no degree 23.8%

Associate's degree 9.8%

Bachelor's degree 15.2%

Graduate / professional 6.3%

Metric	%
HS diploma or higher	90.3%
Bachelor's or higher	21.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	62	9.5%
Kindergarten	15	2.3%
Elementary school	332	51.0%
High school	163	25.0%
College / grad school	79	12.1%

Employment

Industry of employment

Education & healthcare 25.0%

Retail trade 11.8%

Manufacturing 11.1%

Transportation & utilities 9.2%

Finance & real estate 7.1%

Agriculture & mining 7.0%

Arts, food & hospitality 6.3%

Construction 5.9%

Wholesale trade 5.1%

Professional & management 5.0%

Other services 2.5%

Information 2.2%

Public administration 1.7%

Occupation

Category	%
Management, business & arts	37.4%
Service	16.2%
Sales & office	20.4%
Natural resources & construction	6.9%
Production & transportation	19.1%

Employment type

Type	%
Private sector	74.6%
Government	13.1%
Self-employed	11.7%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	76.5%
Carpool	9.5%
Public transit	0.9%
Walk	1.1%
Other means	1.4%
Avg commute (minutes)	26.9

Poverty

All people 15.6%

Under 18 years 15.6%

18 and over 15.6%

Married-couple families 3.4%

Female-led households 33.1%

Income support

Source	% of households
Social Security	38.0%
Retirement income	34.1%
Supplemental Security	4.4%
Cash public assistance	3.6%
Food stamps / SNAP	13.4%

Health indicators

Condition	%
High blood pressure	38.4%
High cholesterol	35.9%
Heart disease	8.5%
Stroke	4.0%
Asthma	9.9%
Arthritis	32.2%
Kidney disease	3.6%
Pulmonary disease	9.2%
Cancer	8.4%

Behavior / access	%
Binge drinking	14.0%
No physical activity	28.6%
Less than 7 hrs sleep	31.3%
Fair or poor health	17.1%
Poor mental health	12.9%
Poor physical health	11.8%
No health insurance	11.1%
Visited doctor (checkup)	78.5%
Visited dentist	61.0%
Cholesterol screening	90.1%
Teeth loss	17.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	127	5.6%

Disability	%
Any disability	17.0%
Under 18	10.3%
18–64 years	15.3%
65 and over	28.3%

Health insurance coverage

Type	%
Private insurance	71.8%
Public insurance	37.1%
Uninsured under 19	8.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,808	95.3%
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)	2,925	99.3%
Born in same state	2,925	99.3%
Born in different state	2,574	87.4%
Foreign born	0	0.0%
Naturalized citizen	20	0.7%
Not a US citizen	20	100.0%

Ancestry

Ancestry	Count	%
Italian	408	13.9%
French	394	13.4%
Arab	311	10.6%
Polish	29	1%

Ancestry	Count	%
English	24	0.8%
Norwegian	9	0.3%
Irish	8	0.3%

Technology access

Metric	% of households
Computer access	43.7%
Internet access	89.0%

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

Frequently asked questions

What ZIP codes does Mason City, IL have?

Mason City, IL has one ZIP code: 62664. Each ZIP code serves a distinct delivery area within the city and surrounding region.