ZIP Code Tabulation Area · Maine

ZIP Code 04428: Penobscot County, ME

ZIP Code 04428 (Penobscot County, Maine) has an estimated 3,334 residents in 1,438 households. The median household income is $72,857, the median home value is $244,500 and the median gross rent is $1,145/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

3,334

Margin of error ±469

Median household income

$72,857

Margin of error ±$13,935

Median home value

$244,500

Margin of error ±$29,369

Median gross rent

$1,145/mo

Margin of error ±$42

Median age

54.1 yrs

Margin of error ±3.3 yrs

Mean travel time to work

30.9 min

Margin of error ±10.5 min

How ZIP 04428 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 0442854.1 yrsMaine44.8 yrsUnited States38.9 yrs

Median household income

ZIP 04428$72,857Maine$74,733United States$80,734

Per capita income

ZIP 04428$40,289Maine$43,742United States$44,673

Poverty rate

ZIP 044287.5%Maine10.7%United States12.5%

Unemployment rate

ZIP 044281.8%Maine3.8%United States5.2%

Bachelor's degree or higher

ZIP 0442829.2%Maine36.2%United States35.7%

Median home value

ZIP 04428$244,500Maine$296,600United States$332,700

Median gross rent

ZIP 04428$1,145/moMaine$1,139/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0442882.8%Maine74.3%United States65.2%

Mean travel time to work

ZIP 0442830.9 minMaine24.6 minUnited States26.4 min

Worked from home

ZIP 0442813.3%Maine15.9%United States15.1%

All figures for ZIP 04428

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 04428 — ACS 2020–2024 5-year estimates
MeasureZIP 04428Margin of errorMaineUnited States
Total population3,334±4691,387,817334,922,499
Median age54.1 yrs±3.3 yrs44.8 yrs38.9 yrs
Households1,438±173597,159129,227,496
Median household income$72,857±$13,935$74,733$80,734
Per capita income$40,289±$4,764$43,742$44,673
Poverty rate7.5%±2.7 pts10.7%12.5%
Unemployment rate1.8%±1.3 pts3.8%5.2%
Bachelor's degree or higher29.2%±4.9 pts36.2%35.7%
Median home value$244,500±$29,369$296,600$332,700
Median gross rent$1,145/mo±$42$1,139/mo$1,413/mo
Owner-occupied homes82.8%±5.4 pts74.3%65.2%
Mean travel time to work30.9 min±10.5 min24.6 min26.4 min
Worked from home13.3%±6.5 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 04428
GroupZIP 04428MaineUnited States
White alone, not Hispanic or Latino93.3%89.9%57.4%
Black or African American alone, not Hispanic or Latino0.4%1.8%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.3%0.5%
Asian alone, not Hispanic or Latino0.4%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 Latino2.3%0.4%0.6%
Two or more races, not Hispanic or Latino2.3%4.2%4.3%
Hispanic or Latino (of any race)1.3%2.2%19.3%

Where ZIP 04428 is

State
Maine
Main county
Penobscot County
Land area
59.52 sq mi· about 56 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 Penobscot County

04401 Bangor, ME04410 Penobscot County, ME04411 Penobscot County, ME04412 Brewer, ME04417 Penobscot County, ME04418 Penobscot County, ME04419 Penobscot County, ME04422 Penobscot County, ME04427 Penobscot County, ME04430 Penobscot County, ME04434 Penobscot County, ME04435 Penobscot County, ME04444 Penobscot County, ME04448 Penobscot County, ME04449 Penobscot County, ME04450 Penobscot County, ME04453 Penobscot County, ME04455 Penobscot County, ME04456 Penobscot County, ME04457 Penobscot County, ME04460 Penobscot County, ME04461 Penobscot County, ME04468 Old Town, ME04469 Orono, ME

See every ZIP code in Maine, or compare ZIP 04428 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.