PlainZIP

Gardiner, ME · standard

ZIP Code 04345

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

11,646
62/sq mi
$77,410
Median income
$242,800
Median home value
29.7%
Bachelor's or higher

The verdict

Gardiner pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 42%
household income, US ZIPs
Top 44%
home value, US ZIPs
62
people per sq mi
78%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 04345 against every reporting US ZIP.

ZIP code 04345 is a mid-sized community (a standard USPS delivery area) in Gardiner, Kennebec County, Maine, home to 11,646 residents across 186.6 square miles, a density of 62 people per square mile, in the New York time zone.

ZIP 04345 lands in the middle-income range, with a median household income of $77,410 (5% above the Maine average), while per-capita income is $40,192. Poverty here runs at 10.2%, with unemployment measured at 4.5%. Housing costs here run $242,800 for a typical home value (14% below the state average), with rent averaging $1,045 a month; 77.6% of homes are owner-occupied.

Educational attainment sits below the national norm: 29.7% of adults hold a bachelor's degree or higher, the median age is 41.9, and the average commute is 27 minutes. Beyond these figures, 8 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Kennebec County, letting you compare 04345 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 →

Top industries in ZIP 04345

Top 5 sectors by establishment count in Gardiner, ME

Which industries have the most business establishments in ZIP 04345.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

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 04345, Gardiner, 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

11,646

Population

186.6

Area (sq mi)

62

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 04345?

41.9

Median Age

49.6%

Male

50.4%

Female

2.6%

Foreign-Born

White 90.2%
African American 0.7%
Asian 0.8%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.0%
Hispanic or Latino 4.7%

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?

$77,410

Median Household Income

+5% vs state

$40,192

Per Capita Income

10.2%

Poverty Rate

4.5%

Unemployment Rate

26.7 min

Mean Commute Time

How ZIP 04345 ranks nationally

Gardiner, ME household income vs. every US ZIP code

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

$77,410 Top 42% higher than 58% 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%). This entry sits in this band. $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 64.8%
Bachelor's Degree or Higher 29.7%

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

What does housing look like?

5,538

Total Housing Units

5,083

Occupied Units

455

Vacant Units

2.46

Avg Household Size

Occupancy Type

Owner 77.6%
Renter 22.4%

$242,800

Median Home Value

-14% vs state

$1,045

Median Rent

1970

Median Year Built

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

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+14.5%

YoY Change (2024)

318

HPI Index (2000 = 100)

+218%

Total Change Since 2000

Home values in ZIP 04345 have increased 14.5% over the past year (2024). Since 2000, this ZIP has seen +218% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.8% 201
2021 +16.3% 234
2022 +23.9% 289
2023 -4.0% 278
2024 +14.5% 318

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 236 business establishments in ZIP 04345, employing approximately 2,871 people with a combined annual payroll of $163,452,000.

236

Businesses

2,871

Employees

$163.5M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Construction 52 22.0%
Retail trade 31 13.1%
Other services (except public administration) 28 11.9%
Professional, scientific, and technical services 26 11.0%
Accommodation and food services 17 7.2%
Health care and social assistance 16 6.8%
Wholesale trade 13 5.5%
Administrative and support and waste management and remediation services 13 5.5%
Real estate and rental and leasing 12 5.1%
Transportation and warehousing 6 2.5%
Manufacturing 5 2.1%
Finance and insurance 5 2.1%
Information 3 1.3%
Management of companies and enterprises 3 1.3%
Arts, entertainment, and recreation 3 1.3%

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 04345 vs 04359 →

ZIP 04345 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 04345 ranks the most populous - useful context the national average alone can't give.

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

ZIP 04345 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 04345 ranks #2 of 7 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
04359 South Gardiner, ME 388 1.9 mi
04346 Randolph, ME 1,772 3.0 mi
04344 Farmingdale, ME 2,951 4.6 mi
04357 Richmond, ME 3,399 5.6 mi
04347 Hallowell, ME 2,355 6.5 mi
04342 Dresden, ME 1,672 8.5 mi
04351 Manchester, ME 2,571 9.9 mi
04343 East Winthrop, ME 25 10.5 mi

More ZIP Codes in Kennebec County

04901 standard
Waterville, ME
Pop: 26,248
04330 standard
Augusta, ME
Pop: 26,086
04963 standard
Oakland, ME
Pop: 7,238
04364 standard
Winthrop, ME
Pop: 6,025
04358 standard
South China, ME
Pop: 4,276
04989 standard
Vassalboro, ME
Pop: 4,215

Related Areas

Kennebec County Gardiner, ME Maine

Frequently Asked Questions

What county is ZIP code 04345 in? ▼
ZIP code 04345 (Gardiner) is located in Kennebec County, Maine. Kennebec County contains multiple ZIP codes, see the full list at /counties/kennebec-me.
What is the population of ZIP code 04345? ▼
ZIP code 04345 in Gardiner, ME has a population of 11,646 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 04345? ▼
The median household income in ZIP 04345 is $77,410, which is 1% above the national average of $76,288.
What is the average home value in ZIP 04345? ▼
The median home value in ZIP 04345 is $242,800, which is 13% below the national average of $278,155.
What is the demographic makeup of ZIP 04345? ▼
The largest racial group in ZIP 04345 is White at 90.2%. Hispanic or Latino residents make up 4.7% of the population.
How many businesses are in ZIP code 04345? ▼
ZIP code 04345 has 236 business establishments employing approximately 2,871 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 04345? ▼
The top industries by establishment count in ZIP 04345 are: Construction (52), Retail trade (31), Other services (except public administration) (28). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 04345? ▼
According to the FHFA House Price Index, home values in ZIP 04345 increased by 14.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 218%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 04345? ▼
In ZIP code 04345, 64.8% of residents aged 25+ have a high school diploma or higher, and 29.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 04345? ▼
The mean commute time for workers in ZIP code 04345 is 26.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 04345? ▼
In ZIP code 04345, approximately 77.6% of occupied housing units are owner-occupied and 22.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 04345? ▼
The poverty rate in ZIP code 04345 is 10.2% 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.