ZIP Code Tabulation Area · Maine

ZIP Code 04345: Gardiner, ME

ZIP Code 04345 (Gardiner, Kennebec County, Maine) has an estimated 12,579 residents in 5,083 households. The median household income is $77,410, the median home value is $242,800 and the median gross rent is $1,045/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

12,579

Margin of error ±259

Median household income

$77,410

Margin of error ±$13,534

Median home value

$242,800

Margin of error ±$17,820

Median gross rent

$1,045/mo

Margin of error ±$137

Median age

41.9 yrs

Margin of error ±2.3 yrs

Mean travel time to work

26.7 min

Margin of error ±3.9 min

How ZIP 04345 compares with Maine and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0434541.9 yrsMaine44.8 yrsUnited States38.9 yrs

Median household income

ZIP 04345$77,410Maine$74,733United States$80,734

Per capita income

ZIP 04345$40,192Maine$43,742United States$44,673

Poverty rate

ZIP 0434510.2%Maine10.7%United States12.5%

Unemployment rate

ZIP 043454.5%Maine3.8%United States5.2%

Bachelor's degree or higher

ZIP 0434529.7%Maine36.2%United States35.7%

Median home value

ZIP 04345$242,800Maine$296,600United States$332,700

Median gross rent

ZIP 04345$1,045/moMaine$1,139/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0434577.6%Maine74.3%United States65.2%

Mean travel time to work

ZIP 0434526.7 minMaine24.6 minUnited States26.4 min

Worked from home

ZIP 0434511.4%Maine15.9%United States15.1%

All figures for ZIP 04345

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 04345 — ACS 2020–2024 5-year estimates
MeasureZIP 04345Margin of errorMaineUnited States
Total population12,579±2591,387,817334,922,499
Median age41.9 yrs±2.3 yrs44.8 yrs38.9 yrs
Households5,083±364597,159129,227,496
Median household income$77,410±$13,534$74,733$80,734
Per capita income$40,192±$3,840$43,742$44,673
Poverty rate10.2%±3.3 pts10.7%12.5%
Unemployment rate4.5%±3.0 pts3.8%5.2%
Bachelor's degree or higher29.7%±4.7 pts36.2%35.7%
Median home value$242,800±$17,820$296,600$332,700
Median gross rent$1,045/mo±$137$1,139/mo$1,413/mo
Owner-occupied homes77.6%±4.9 pts74.3%65.2%
Mean travel time to work26.7 min±3.9 min24.6 min26.4 min
Worked from home11.4%±3.6 pts15.9%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 04345
GroupZIP 04345MaineUnited States
White alone, not Hispanic or Latino89.7%89.9%57.4%
Black or African American alone, not Hispanic or Latino0.7%1.8%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.1%0.3%0.5%
Asian alone, not Hispanic or Latino0.8%1.1%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino1.0%0.4%0.6%
Two or more races, not Hispanic or Latino2.9%4.2%4.3%
Hispanic or Latino (of any race)4.7%2.2%19.3%

Where ZIP 04345 is

State
Maine
Main county
Kennebec County
Largest overlapping place
Gardiner (21% of the ZIP's land area)
Land area
71.74 sq mi· about 175 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Kennebec County

04259 Kennebec County, ME04265 Kennebec County, ME04284 Kennebec County, ME04330 Augusta, ME04344 Farmingdale, ME04346 Randolph, ME04347 Hallowell, ME04349 Kennebec County, ME04350 Kennebec County, ME04351 Kennebec County, ME04352 Kennebec County, ME04355 Kennebec County, ME04358 Kennebec County, ME04359 Gardiner, ME04360 Kennebec County, ME04363 Kennebec County, ME04364 Kennebec County, ME04901 Kennebec County, ME04910 Kennebec County, ME04917 Kennebec County, ME04927 Clinton, ME04963 Kennebec County, ME04989 Kennebec County, ME

See every ZIP code in Maine, or compare ZIP 04345 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.