| ZIP Code | 04421 |
|---|---|
| City | Castine |
| State | Maine (ME) |
| County | Hancock County |
| Area Code | 207 |
| Elevation | 65 ft |
| Latitude | 44.409006 |
|---|---|
| Longitude | -68.815533 |
| Timezone | New York (DST) |
| FIPS | 23009 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 21.0 yrs |
|---|---|
| Avg Household Size | 2.29 |
| Below Poverty | 5.3% ▼ 47% below avg |
| College Grads | 81.6% ▲ 111% above avg |
| Unemployment | 2.1% ▼ 58% below avg |
| HS Graduate | 23 (5%) |
| Some College | 17 (3.7%) |
| Associates | 45 (9.8%) |
| Bachelors | 42 (9.1%) |
| Graduate Degree | 334 (72.5%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $111,500 ▲ 46% above avg ↑ 79% since 2019 |
|---|---|
| Median Home Value | $557,700 ▲ 100% above avg ↑ 66% since 2019 |
| Home/Income Ratio | 5.0x (nat avg ~3.5x) |
| Median Rent | $1,028/mo ↓ 4% since 2019 |
| Total Units | 694 |
| Vacant Units | 392 |
| Avg HH Size | 2.29 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 694 |
|---|---|
| Vacant | 392 |
| Owner Occupied | 81.5% |
| Renter Occupied | 18.5% |
| Avg HH Size | 2.29 |
ZIP code 04421 is located in Castine, Maine, within Hancock County. With a population of 1,222, this is a sparsely populated ZIP code with a young community — the median age is 21 years. Economically, 04421 is a upper-middle-income ZIP code: the median household income of $111,500 is above the national average.
Real estate in ZIP code 04421 represents a premium housing market. The median home value of $557,700 is more than double the national average. Renters can expect to pay around $1,028 per month in median rent. Homeownership is strong here — 81.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 66% since 2019.
The population of 04421 is primarily White (85.76%). Residents are highly educated — 81.6% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 5.3%. Household income has grown by 79% since 2019.
The unemployment rate in 04421 stands at 2.1%, which is well below the national average. About 13% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 38%.
Overall, ZIP code 04421 in Castine, ME is characterized as upper-middle-income, highly educated, a young community, and predominantly owner-occupied. With 1,222 residents, a median household income of $111,500, and a median home value of $557,700, it offers a clear picture of life in this part of Maine.