03909 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Maine based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 03909 is White. The majority race/ethnicity attending public schools in 03909 is White. The current unemployment level in 03909 is 2.8%.
| Population | 10,811 |
| Population Growth Rate | 11.63% |
| Population Density | 295 People per Square Mile |
| Total Households | 4,327 |
| Percentage High Income Households | 7.1% |
| Median Household Income (2021) | $102,335 |
| Average Adjusted Gross Income (2021) | $547,870 |
| Current Unemployment Rate (September 2025) | 2.8% |
| Sales Tax Rate (2025) | 5.5% |
| Majority Race/Ethnicty | White - 98.76% |
| Public School Majority Race/Ethnicty | White - 92.61% |
03909 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 10,701 | 98.76% |
| Black | 0 | 0% |
| Hispanic | 73 | 0.67% |
| Asian | 61 | 0.56% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
03909 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 1,503 | 95.98% |
| Black | 10 | 0.64% |
| Hispanic | 37 | 2.36% |
| Asian | 15 | 0.96% |
| Native American | 1 | 0.06% |
| Hawaiian/Pac. Islander | 0 | 0% |
03909 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 418 | 5.59% |
| Bachelor Degree | 2,240 | 29.93% |
| High School Diploma | 1,329 | 17.76% |
| No High School Diploma | 72 | 0.96% |
| GED or Alternate | 379 | 5.06% |
| 1 or More Years of College | 992 | 13.26% |
| Associates Degree | 670 | 8.95% |
| Masters Degree | 960 | 12.83% |
| Professional Degree | 283 | 3.78% |
| Doctorate Degree | 140 | 1.87% |