PlainZIP

Port Clyde, ME · standard

ZIP Code 04855

Knox County, Maine - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

307
51/sq mi
$250,001
Median income
$358,100
Median home value
85.3%
Bachelor's or higher

The verdict

Port Clyde pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 25%
home value, US ZIPs
51
people per sq mi
100%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 04855 against every reporting US ZIP.

ZIP code 04855 is a sparsely populated ZIP (a standard USPS delivery area) in Port Clyde, Knox County, Maine, home to just 307 residents across 6.0 square miles, a density of 51 people per square mile, in the New York time zone.

ZIP 04855 skews affluent, with a median household income of $250,001 (240% above the Maine average), while per-capita income is $141,449. The poverty rate stands at 0.0% and the unemployment rate at 0.0%. The typical home here is valued at $358,100 (26% above the state average); renters pay a median of - monthly, and 100.0% of units are owner-occupied.

This is a highly-educated ZIP: 85.3% of adults hold a bachelor's degree or higher, the median age is 69.3, and the average commute is -. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Knox County, so you can benchmark 04855 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 04855, Port Clyde, ME · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

307

Population

6.0

Area (sq mi)

51

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 04855?

69.3

Median Age

55.9%

Male

44.1%

Female

2.9%

Foreign-Born

White 100.0%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$250,001

Median Household Income

+240% vs state

$141,449

Per Capita Income

0.0%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 04855 ranks nationally

Port Clyde, ME household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$250,001 Top 1% higher than 99% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 89.1%
Bachelor's Degree or Higher 85.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

234

Total Housing Units

194

Occupied Units

40

Vacant Units

1.61

Avg Household Size

Occupancy Type

Owner 100.0%
Renter 0.0%

$358,100

Median Home Value

+26% vs state

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 22 business establishments in ZIP 04855, employing approximately 52 people with a combined annual payroll of $2,329,000.

22

Businesses

52

Employees

$2.3M

Annual Payroll

2

Industry Sectors

Industry Establishments % of Total
Agriculture, forestry, fishing and hunting 7 31.8%
Accommodation and food services 4 18.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 04855 vs 04860 →

ZIP 04855 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 04855 ranks #6 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 04855 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 04855 ranks the highest of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
04860 Tenants Harbor, ME 1,591 2.8 mi
04563 Cushing, ME 1,534 5.6 mi
04547 Friendship, ME 1,152 5.4 mi
04859 Spruce Head, ME 724 7.0 mi
04858 South Thomaston, ME 1,533 9.5 mi

More ZIP Codes in Knox County

04841 standard
Rockland, ME
Pop: 7,297
04843 standard
Camden, ME
Pop: 4,851
04864 standard
Warren, ME
Pop: 4,751
04862 standard
Union, ME
Pop: 3,592
04856 standard
Rockport, ME
Pop: 3,330
04861 standard
Thomaston, ME
Pop: 2,781

Related Areas

Knox County Port Clyde, ME Maine

Frequently Asked Questions

What county is ZIP code 04855 in? ▼
ZIP code 04855 (Port Clyde) is located in Knox County, Maine. Knox County contains multiple ZIP codes, see the full list at /counties/knox-me.
What is the population of ZIP code 04855? ▼
ZIP code 04855 in Port Clyde, ME has a population of 307 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 04855? ▼
The median household income in ZIP 04855 is $250,001, which is 228% above the national average of $76,288.
What is the average home value in ZIP 04855? ▼
The median home value in ZIP 04855 is $358,100, which is 29% above the national average of $278,155.
What is the demographic makeup of ZIP 04855? ▼
The largest racial group in ZIP 04855 is White at 100.0%.
How many businesses are in ZIP code 04855? ▼
ZIP code 04855 has 22 business establishments employing approximately 52 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 04855? ▼
In ZIP code 04855, 89.1% of residents aged 25+ have a high school diploma or higher, and 85.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).

Read our methodology to see how this data is sourced, computed, and verified.