South Thomaston ZIP Code List — Knox County, ME

There is one unique ZIP code in South Thomaston, Maine and it is 04858. Area code: 207.

ZIP codes

11.42

sq mi land

3.23

sq mi water

207

area code

South Thomaston, ME ZIP code map

About South Thomaston, ME

South Thomaston, Maine, is a small town located in the picturesque Knox County. Known for its serene coastal beauty, it offers residents and visitors a glimpse into small-town life in New England. The town is marked by a rich history and a close-knit community that values both tradition and nature.

Location & geography

Geographically, South Thomaston spans a land area of 11.42 square miles and includes an additional 3.23 square miles of water. It is situated along the coast of Maine, bordered by the charming communities of Thomaston to the north and Rockland to the south. The terrain features both land and water, contributing to its scenic beauty and recreational opportunities.

Community & economy

The character of South Thomaston is defined by its welcoming atmosphere and community-focused lifestyle. Local industries primarily revolve around fishing, tourism, and small-scale crafts, which together support the economy of the area. Daily life is often marked by the rhythms of the sea and a strong sense of community engagement through local events and gatherings.

Transportation

Major highways such as U.S. Route 1 provide crucial access to South Thomaston, connecting it to larger nearby cities. The nearest airport is the Knox County Regional Airport, located just a short distance away, enhancing accessibility for both residents and travelers. Public transit options are limited, emphasizing the town's laid-back, rural nature.

History

Historically, South Thomaston was incorporated in the 1800s and has roots in shipbuilding and fishing, industries that were vital to its early economy. The town has seen growth over the years while retaining its characteristic charm and community focus. Key events have shaped its development, building a unique cultural tapestry reflective of Maine's coastal heritage.

Did you know?

A little-known fact about South Thomaston is that it is home to the famous, striking Owl's Head Light, which attracts visitors and photographers alike. Additionally, the area's rich maritime history makes it a fascinating place for those interested in nautical culture.

ZIP codes for South Thomaston, ME (1)

ZIP code	City	County	Map
04858	South Thomaston	Knox	View map

Demographics & statistics

1,371

Population

48.8

Median age

$80,658

Median household income

$40,274

Per capita income

$276,500

Median home value

$1,163

Median monthly rent

88.9%

Home ownership

4.2%

Poverty rate

0.0%

Unemployment

790

Housing units

43.4%

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

127

65–74

156

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	201	14.7%
18 and over	1,170	85.3%
65 and over	423	30.9%
Median age	48.8 years

Race & ethnicity

White 97.5%

Two or more races 1.5%

Hispanic or Latino 0.5%

Other race 0.5%

Group	Count	%
White	1,344	97.5%
Two or more races	20	1.5%
Hispanic or Latino	7	0.5%
Other race	7	0.5%

Household income

Under $10k 2.4%

$10k–$15k 3.1%

$15k–$25k 7.1%

$25k–$35k 5.5%

$35k–$50k 10.0%

$50k–$75k 14.9%

$75k–$100k 23.5%

$100k–$150k 17.1%

$150k–$200k 10.6%

$200k+ 5.7%

Range	% of households
Under $10k	2.4%
$10k–$15k	3.1%
$15k–$25k	7.1%
$25k–$35k	5.5%
$35k–$50k	10.0%
$50k–$75k	14.9%
$75k–$100k	23.5%
$100k–$150k	17.1%
$150k–$200k	10.6%
$200k+	5.7%
Median income	$80,658

Housing

Home values

Under $50k 3.7%

$50k–$100k 4.7%

$100k–$150k 10.7%

$150k–$200k 8.2%

$200k–$300k 27.4%

$300k–$500k 28.4%

$500k–$1M 15.2%

$1M+ 1.8%

Housing overview

Metric	Value
Median home value	$276,500
Median rent / month	$1,163
Owner occupied	88.9%
Renter occupied	11.1%
Vacant	32.3%
Single-family detached	92.9%
Large apartment buildings	0.0%
Mobile homes	5.0%
Median rooms	5.6
Avg household size (owned)	2.46

Year built

Era	%
2020 or later	0.0%
2010–2019	4.8%
2000–2009	17.6%
1990–1999	12.6%
1980–1989	14.2%
1970–1979	17.9%
1960–1969	4.7%
1950–1959	5.4%
1940–1949	2.7%
1939 or earlier	20.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	9.8%
2 bedrooms	30.4%
3 bedrooms	43.1%
4 bedrooms	13.5%
5+ bedrooms	2.7%

Vehicles per household

Vehicles	% of households
No vehicle	3.6%
1 vehicle	32.2%
2 vehicles	37.9%
3 or more	26.3%

Heating fuel

Fuel type	%
Utility gas	3.1%
Electricity	1.0%
Propane / LP gas	14.0%
Fuel oil	69.2%
Wood	12.6%

Households & families

Household type	Count	%
Married-couple family	334	57.8%
Cohabiting couple	17	2.9%
Male householder, no spouse	101	17.5%
Female householder, no spouse	126	21.8%
Households with children under 18	141	24.4%
Households with seniors (65+)	294	50.9%
Average household size	2.37

Marital status

Status	Male	Female
Never married	20.0%	26.6%
Married	67.6%	55.7%
Separated	0.0%	0.0%
Widowed	3.2%	9.6%
Divorced	9.2%	8.1%

Education

Less than 9th grade 0.5%

Some HS, no diploma 2.7%

HS graduate 33.9%

Some college, no degree 17.1%

Associate's degree 2.4%

Bachelor's degree 29.5%

Graduate / professional 13.9%

Metric	%
HS diploma or higher	96.8%
Bachelor's or higher	43.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	8	2.6%
Kindergarten	16	5.2%
Elementary school	71	23.0%
High school	66	21.4%
College / grad school	148	47.9%

Employment

Industry of employment

Retail trade 29.0%

Education & healthcare 19.1%

Professional & management 8.9%

Arts, food & hospitality 8.7%

Manufacturing 7.7%

Construction 7.5%

Transportation & utilities 5.2%

Other services 3.7%

Agriculture & mining 3.0%

Public administration 2.4%

Finance & real estate 2.2%

Information 1.5%

Wholesale trade 1.3%

Occupation

Category	%
Management, business & arts	34.0%
Service	10.0%
Sales & office	33.8%
Natural resources & construction	11.8%
Production & transportation	10.3%

Employment type

Type	%
Private sector	78.1%
Government	14.9%
Self-employed	6.5%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	85.1%
Carpool	8.0%
Public transit	0.6%
Walk	0.3%
Other means	1.7%
Avg commute (minutes)	16.9

Poverty

All people 4.2%

Under 18 years 4.7%

18 and over 4.1%

Married-couple families 0.9%

Female-led households 7.4%

Income support

Source	% of households
Social Security	50.9%
Retirement income	40.5%
Supplemental Security	2.6%
Cash public assistance	1.0%
Food stamps / SNAP	7.1%

Health indicators

Condition	%
High blood pressure	33.0%
High cholesterol	36.2%
Heart disease	7.0%
Stroke	3.0%
Asthma	9.8%
Arthritis	27.9%
Kidney disease	2.9%
Pulmonary disease	7.5%
Cancer	8.2%

Behavior / access	%
Binge drinking	15.6%
No physical activity	18.7%
Less than 7 hrs sleep	30.4%
Fair or poor health	11.1%
Poor mental health	12.8%
Poor physical health	8.9%
No health insurance	11.8%
Visited doctor (checkup)	78.0%
Visited dentist	72.6%
Cholesterol screening	91.1%
Teeth loss	13.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	132	11.3%

Disability	%
Any disability	18.9%
Under 18	0.0%
18–64 years	18.5%
65 and over	28.6%

Health insurance coverage

Type	%
Private insurance	68.4%
Public insurance	43.8%
Uninsured under 19	9.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,319	96.2%
Spanish	14	1.1%
Other Indo-European	14	1.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,358	99.1%
Born in same state	1,343	98.0%
Born in different state	804	58.6%
Foreign born	15	1.1%
Naturalized citizen	13	0.9%
Not a US citizen	13	100.0%

Ancestry

Ancestry	Count	%
French	506	36.9%
Italian	210	15.3%
Arab	102	7.4%
German	55	4%
Polish	29	2.1%

Ancestry	Count	%
English	9	0.7%
Dutch	6	0.4%
Irish	3	0.2%
Norwegian	2	0.1%

Technology access

Metric	% of households
Computer access	42.2%
Internet access	90.7%

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

Frequently asked questions

What is the ZIP code for South Thomaston, ME?

South Thomaston, ME has one ZIP code: 04858.

What is the main ZIP code for South Thomaston, ME?

The primary ZIP code for South Thomaston, ME is 04858. The city uses area code 207 for phone service.

What county is South Thomaston, ME in?

South Thomaston is located in Knox County, Maine.

How many ZIP codes are in South Thomaston, ME?

South Thomaston, ME has 1 ZIP code.

What ZIP code covers the residential areas around South Thomaston's village center and the Wessaweskeag River area?

South Thomaston's main residential and village areas, including the Wessaweskeag River neighborhood, are all served by the single ZIP code 04858.

If I'm sending mail to a home near the South Thomaston Historic District and the old Knox County settlements, what ZIP code should I use?

All mail to South Thomaston, including addresses in the historic district area, uses ZIP code 04858, as this is the only ZIP code serving the entire town.