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Maine ZIP Codes
Kennebec County
South China, ME
04358
04358 ZIP Code — South China, ME
Kennebec County, Maine
ZIP code 04358 is located in
South China ,
Maine ,
within Kennebec County .
It covers approximately 49.85 square miles and serves a population of
4,434 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 207 .
About ZIP code 04358
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $212,700. Owner-occupancy is high at 93%, well above the national average.
Median household income is $94,645. The poverty rate of 4% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average.
Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.
04358 ZIP code map
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Cities in ZIP code 04358
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
4,434
Population density
89 / sq mi
State FIPS
23
County FIPS
011
Geography
Land area
49.85 sq mi
Water area
6.96 sq mi
Latitude
44.4205
Longitude
-69.5314
Timezone
Eastern (ET)
Area code
207
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.6%
45.7%
42.3%
$50k – $100k
41.2%
32.0%
32.3%
$100k – $200k
23.9%
18.4%
20.6%
Over $200k
5.2%
3.8%
4.9%
Demographics & statistics
$94,645
Median household income
$212,700
Median home value
31.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 910 20.5%
18 and over 3,524 79.5%
65 and over 574 12.9%
Median age 40.4 years
Race & ethnicity
Black or African American
0.6%
Group Count %
White 4,285 95.7%
Two or more races 89 2%
Hispanic or Latino 43 1%
Asian 31 0.7%
Black or African American 29 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.6%
45.7%
42.3%
$50k – $100k
41.2%
32.0%
32.3%
$100k – $200k
23.9%
18.4%
20.6%
Over $200k
5.2%
3.8%
4.9%
Range % of households
Under $10k 2.8%
$10k–$15k 1.5%
$15k–$25k 3.4%
$25k–$35k 3.3%
$35k–$50k 6.9%
$50k–$75k 17.2%
$75k–$100k 22.3%
$100k–$150k 26.6%
$150k–$200k 8.9%
$200k+ 7.1%
Median income $94,645
Housing
Housing overview
Metric Value
Median home value $212,700
Median rent / month $979
Owner occupied 93.0%
Renter occupied 7.0%
Vacant 26.3%
Single-family detached 88.8%
Large apartment buildings 0.0%
Mobile homes 7.8%
Median rooms 5.6
Avg household size (owned) 2.35
Year built
Era %
2020 or later 0.3%
2010–2019 6.3%
2000–2009 14.2%
1990–1999 11.3%
1980–1989 13.4%
1970–1979 17.7%
1960–1969 10.0%
1950–1959 6.2%
1940–1949 4.5%
1939 or earlier 16.0%
Bedrooms
Size % of units
No bedroom (studio) 0.9%
1 bedroom 8.0%
2 bedrooms 27.0%
3 bedrooms 44.5%
4 bedrooms 18.6%
5+ bedrooms 1.1%
Vehicles per household
Vehicles % of households
No vehicle 1.9%
1 vehicle 17.8%
2 vehicles 42.8%
3 or more 37.6%
Heating fuel
Fuel type %
Electricity 2.0%
Propane / LP gas 20.7%
Fuel oil 57.6%
Wood 19.3%
No fuel used 0.4%
Households & families
Household type Count %
Married-couple family 1,102 58.4%
Cohabiting couple 130 6.9%
Male householder, no spouse 387 20.5%
Female householder, no spouse 268 14.2%
Households with children under 18 598 31.7%
Households with seniors (65+) 427 22.6%
Average household size 2.35
Marital status
Status Male Female
Never married 17.3% 15.5%
Married 59.7% 64.9%
Separated 4.0% 0.0%
Widowed 1.5% 4.6%
Divorced 17.5% 15.0%
Education
Some college, no degree
20.9%
Graduate / professional
11.6%
Metric %
HS diploma or higher 95.6%
Bachelor's or higher 31.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 75 9.0%
Kindergarten 68 8.2%
Elementary school 241 29.0%
High school 271 32.7%
College / grad school 175 21.1%
Employment
Industry of employment
Education & healthcare
28.9%
Professional & management
9.5%
Transportation & utilities
7.2%
Public administration
6.1%
Arts, food & hospitality
4.8%
Finance & real estate
3.9%
Agriculture & mining
0.9%
Occupation
Category %
Management, business & arts 36.8%
Service 16.2%
Sales & office 18.5%
Natural resources & construction 18.4%
Production & transportation 10.2%
Employment type
Type %
Private sector 61.9%
Government 25.8%
Self-employed 12.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 79.9%
Carpool 6.7%
Public transit 0.9%
Walk 2.2%
Work from home 9.7%
Other means 0.6%
Avg commute (minutes) 29.1
Poverty
Married-couple families
3.3%
Female-led households
19.8%
Income support
Source % of households
Social Security 25.4%
Retirement income 21.7%
Supplemental Security 2.9%
Cash public assistance 0.8%
Food stamps / SNAP 3.0%
Health indicators
Condition %
Obesity 33.4%
High blood pressure 29.9%
High cholesterol 30.8%
Diabetes 8.8%
Heart disease 6.0%
Stroke 2.5%
Asthma 10.5%
Arthritis 25.0%
Kidney disease 2.5%
Pulmonary disease 7.0%
Cancer 6.6%
Behavior / access %
Smoking 16.8%
Binge drinking 16.7%
No physical activity 18.8%
Less than 7 hrs sleep 28.9%
Depression 22.6%
Fair or poor health 10.5%
Poor mental health 13.4%
Poor physical health 8.8%
No health insurance 10.7%
Visited doctor (checkup) 78.7%
Visited dentist 71.2%
Cholesterol screening 90.1%
Teeth loss 13.3%
Veterans & disability
Veterans Count %
Civilian veterans 263 7.5%
Disability %
Any disability 12.2%
Under 18 1.9%
18–64 years 9.8%
65 and over 40.4%
Health insurance coverage
Type %
Private insurance 80.2%
Public insurance 24.1%
No insurance 6.2%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 4,095 92.4%
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) 4,395 99.1%
Born in same state 4,346 98.0%
Born in different state 3,264 73.6%
Foreign born 49 1.1%
Naturalized citizen 39 0.9%
Not a US citizen 39 100.0%
Ancestry
Ancestry Count %
French 1,164 26.3%
Italian 735 16.6%
German 344 7.8%
Arab 244 5.5%
English 80 1.8%
Ancestry Count %
Irish 29 0.7%
Norwegian 18 0.4%
Dutch 17 0.4%
Polish 11 0.2%
Technology access
Metric % of households
Computer access 42.6%
Internet access 98.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 04358
What city is ZIP code 04358 in?
ZIP code 04358 is primarily assigned to South China, Maine.
What county is ZIP code 04358 in?
ZIP code 04358 falls within Kennebec County, Maine.
Is ZIP code 04358 mostly owner-occupied?
93% of occupied units in ZIP code 04358 are owner-occupied, well above the national average.
What is the population of ZIP code 04358?
ZIP code 04358 has an estimated population of 4,434 residents, with a density of 89 people per square mile.
What is the median household income in ZIP code 04358?
The median household income in ZIP code 04358 is $94,645, above the national median of ~$75,000.
What is the typical home value in ZIP code 04358?
The median home value in ZIP code 04358 is $212,700.
What timezone is ZIP code 04358 in?
ZIP code 04358 observes the EST timezone.
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