PlainZIP

Isle Au Haut, ME · standard

ZIP Code 04645

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

73
2/sq mi
$49,500
Median income
$593,800
Median home value
56.5%
Bachelor's or higher

The verdict

Isle Au Haut pairs one of the lowest household incomes in the country with top-decile home values, in a rural, homeowner-dominated area.

14th pct
household income, US ZIPs
Top 9%
home value, US ZIPs
2
people per sq mi
74%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 04645 against every reporting US ZIP.

ZIP code 04645 is a sparsely populated ZIP (a standard USPS delivery area) in Isle Au Haut, Knox County, Maine, home to just 73 residents across 31.7 square miles, a density of 2 people per square mile, in the New York time zone.

ZIP 04645 reports a modest median household income of $49,500 (33% below the Maine average), while per-capita income is $128,106. The poverty rate stands at 2.9% and the unemployment rate at 0.0%. On housing, the median home value is $593,800 (109% above the state average) with median rent at $967 per month, and 74.0% of occupied units are owner-occupied.

This is a highly-educated ZIP: 56.5% of adults hold a bachelor's degree or higher, the median age is 71.4, and the average commute is -. Beyond these figures, 1 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Knox County, letting you compare 04645 to its immediate surroundings rather than a national baseline 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 04645, Isle Au Haut, 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

73

Population

31.7

Area (sq mi)

2

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 04645?

71.4

Median Age

50.7%

Male

49.3%

Female

0.0%

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?

$49,500

Median Household Income

-33% vs state

$128,106

Per Capita Income

2.9%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 04645 ranks nationally

Isle Au Haut, ME household income vs. every US ZIP code

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

$49,500 14th percentile higher than 14% 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%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. 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 97.1%
Bachelor's Degree or Higher 56.5%

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

What does housing look like?

138

Total Housing Units

50

Occupied Units

88

Vacant Units

1.38

Avg Household Size

Occupancy Type

Owner 74.0%
Renter 26.0%

$593,800

Median Home Value

+109% vs state

$967

Median Rent

1953

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 3 business establishments in ZIP 04645, employing approximately 12 people with a combined annual payroll of $227,000.

3

Businesses

12

Employees

$227K

Annual Payroll

0

Industry Sectors

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 04645 vs 04681 →

ZIP Code City Population Distance
04681 Stonington, ME 1,043 7.9 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 Isle Au Haut, ME Maine

Frequently Asked Questions

What county is ZIP code 04645 in? ▼
ZIP code 04645 (Isle Au Haut) 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 04645? ▼
ZIP code 04645 in Isle Au Haut, ME has a population of 73 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 04645? ▼
The median household income in ZIP 04645 is $49,500, which is 35% below the national average of $76,288.
What is the average home value in ZIP 04645? ▼
The median home value in ZIP 04645 is $593,800, which is 113% above the national average of $278,155.
What is the demographic makeup of ZIP 04645? ▼
The largest racial group in ZIP 04645 is White at 100.0%.
How many businesses are in ZIP code 04645? ▼
ZIP code 04645 has 3 business establishments employing approximately 12 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 04645? ▼
In ZIP code 04645, 97.1% of residents aged 25+ have a high school diploma or higher, and 56.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 04645? ▼
In ZIP code 04645, approximately 74.0% of occupied housing units are owner-occupied and 26.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 04645? ▼
The poverty rate in ZIP code 04645 is 2.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

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