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ZIP Code 04858, Maine

ZIP Code 04858 profile, demographic data, and geographic information.

ZCTA5 04858 is a 5-digit ZIP Code area located in Knox County, Maine. As of official census estimates, it has a reported population of 1,378. The land area covers 11.42 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 1,378 ±260 2020-2024 / Census ACS 5-Year 2024
Median Age 54.1 yrs ±11.2 2020-2024 / Census ACS 5-Year 2024
Total Households 608 ±84 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 809 ±92
Occupied Housing Units 608 ±84
Vacant Housing Units 201 ±64
Median Home Value $341,300 ±$37,168
Median Gross Rent $925 ±$633
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $87,059 ±$6,554
Per Capita Income $47,373 ±$6,029
Poverty Rate 4.2% ±1.7%
Population Below Poverty Level 58 ±25
Unemployment Rate 0% ±1.6%
Civilian Labor Force, Employed 670 ±176
Broadband Internet Rate 92.3% ±3.9%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 40,981 (2024)
ID: 166154
County Official County Government
Contact: KNOX COUNTY ADMINISTRATOR
62 UNION ST, ROCKLAND ME 04841-2836

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby PK-05 Owls Head, ME
Regular School Nearby 09-12 Rockport, ME
Regular School Nearby PK-04 Rockport, ME
Regular School Nearby 05-08 Camden, ME
Regular School Nearby KG-05 Cushing, ME
Regular School Nearby KG-06 Friendship, ME
Regular School Nearby PK-08 Hope, ME
Regular School Nearby KG-08 Jefferson, ME
Regular School Nearby KG-08 Matinicus Isle Plantation, ME
Regular School Nearby 07-08 Waldoboro, ME
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Maine Media College
College 10.9 mi away 70 Camden Street, Rockport, ME, 04856-5952
2072368581
SOUTH THOMASTON PUBLIC LIBRARY
Library 1.3 mi away 54 SPRUCE HEAD ROAD, SOUTH THOMASTON, ME, 04858
(207) 596-0022
THOMASTON PUBLIC LIBRARY
Library 2.6 mi away 60 MAIN STREET, THOMASTON, ME, 04861
(207) 354-2453
ROCKLAND PUBLIC LIBRARY
Library 4.6 mi away 80 UNION ST., ROCKLAND, ME, 04841
(207) 594-0310
CUSHING PUBLIC LIBRARY
Library 5.1 mi away 39 CROSS ROAD, CUSHING, ME, 04563
(207) 354-8860
JACKSON MEMORIAL LIBRARY
Library 6.3 mi away 71 MAIN STREET, TENANTS HARBOR, ME, 04860
(207) 372-8961
WARREN FREE PUBLIC LIBRARY
Library 6.7 mi away 282 MAIN STREET, WARREN, ME, 04864
(207) 273-2900
FRIENDSHIP PUBLIC LIBRARY
Library 9.9 mi away 3 MAIN STREET, FRIENDSHIP, ME, 04547
(207) 832-5332
ROCKPORT PUBLIC LIBRARY
Library 10.6 mi away 1 LIMEROCK STREET, ROCKPORT, ME, 04856
(207) 236-3642
WALDOBORO PUBLIC LIBRARY
Library 11.4 mi away 958 MAIN STREET, WALDOBORO, ME, 04572
(207) 832-4484
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at TENANTS HARBOR, ME US, located 4.9 miles from ZCTA5 04858. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 35.2° 17.4° 26.3° 4.01" 15.1"
February 36.6° 19.2° 27.9° 3.49" 13.9"
March 42.5° 25.4° 33.9° 4.50" 8.4"
April 51.4° 33.9° 42.7° 4.25" 2.3"
May 60.6° 42.7° 51.7° 3.53" 0.0"
June 68.7° 50.2° 59.4° 3.83" 0.0"
July 74.2° 56.1° 65.2° 3.08" 0.0"
August 74.0° 56.6° 65.3° 2.85" 0.0"
September 68.2° 51.5° 59.8° 4.01" 0.0"
October 58.5° 42.6° 50.6° 4.71" 0.1"
November 49.1° 33.7° 41.4° 4.51" 2.0"
December 40.6° 24.4° 32.5° 4.83" 11.3"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Thomaston CDP CDP 2.7 mi —
Rockland city City 5.5 mi —
Waldoboro CDP CDP 11.6 mi —
Camden CDP CDP 12.3 mi —
Damariscotta CDP CDP 18.3 mi —
Newcastle CDP CDP 18.8 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 04858. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.