ZIP 99623 vs ZIP 99631
A side-by-side comparison of ZIP Code 99623 and ZIP Code 99631: population, income, housing, and more.
ZIP 99623 and ZIP 99631 are ZIP Code areas in Alaska. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 99623 has the higher population (22,786 vs 101 in ZIP 99631). ZIP 99631 has the higher median household income ($113,889 vs $87,606 in ZIP 99623). Since 2019, ZIP 99623's population has grown faster (+5.9% vs -69.5%).
Population, income & housing
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| Population | 22,786 | 101 |
| Median age | 35.4 yrs | 26.9 yrs |
| Median household income | $87,606 | $113,889 |
| Median home value | $294,800 | — |
| Median gross rent | $1,558 | — |
| Housing units | 9,084 | 185 |
| Homeownership rate | 80.8% | 35.7% |
| Bachelor's degree or higher | 17.3% | 69.8% |
| Unemployment rate | 5.0% | 5.8% |
Trends (ACS 5-year, 2019–2023)
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| Population | 21,510 → 22,786 (+5.9%) | 331 → 101 (-69.5%) |
| Median household income | $82,188 → $87,606 (+6.6%) | $78,382 → $113,889 (+45.3%) |
| Median home value | $243,800 → $294,800 (+20.9%) | $263,200 → $271,600 (+3.2%) |
| Median gross rent | $1,285 → $1,558 (+21.2%) | — |
ZIP 99623
21,51022,786
$82,188$87,606
$243,800$294,800
$1,285$1,558
ZIP 99631
331101
$78,382$113,889
$263,200$271,600
Age & race/ethnicity
Age distribution (share)
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| Under 5 | 6.5% | 0.0% |
| 5 to 17 | 20.2% | 0.0% |
| 18 to 24 | 7.3% | 5.0% |
| 25 to 34 | 15.5% | 53.5% |
| 35 to 44 | 14.5% | 0.0% |
| 45 to 54 | 12.2% | 7.9% |
| 55 to 64 | 12.6% | 27.7% |
| 65 to 74 | 7.6% | 0.0% |
| 75 and over | 3.5% | 5.9% |
Race & ethnicity (share)
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| White (non-Hispanic) | 74.6% | 73.3% |
| Black or African American | 1.5% | 0.0% |
| American Indian & Alaska Native | 8.0% | 0.0% |
| Asian | 3.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.4% | 0.0% |
| Some other race | 0.4% | 0.0% |
| Two or more races | 7.8% | 18.8% |
| Hispanic or Latino | 4.4% | 7.9% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| No high school diploma | 7.8% | 8.3% |
| High school graduate | 38.9% | 11.5% |
| Some college or associate's | 36.0% | 10.4% |
| Bachelor's degree | 11.2% | 69.8% |
| Graduate or professional degree | 6.1% | 0.0% |
Commute to work
How workers get to work (share)
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| Drove alone | 72.7% | 0.0% |
| Carpooled | 10.6% | 69.0% |
| Public transit | 0.7% | 0.0% |
| Walked | 0.6% | 31.0% |
| Bicycle | 0.2% | 0.0% |
| Worked from home | 8.4% | 0.0% |
| Other means | 6.8% | 0.0% |
Housing
Units in structure (share)
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| 1-unit, detached | 85.8% | 73.0% |
| 1-unit, attached | 1.4% | 0.0% |
| 2 to 4 units | 8.0% | 27.0% |
| 5 to 19 units | 0.8% | 0.0% |
| 20 or more units | 0.2% | 0.0% |
| Mobile home & other | 3.7% | 0.0% |
Poverty & households
| ZIP 99623 | ZIP 99631 | |
|---|---|---|
| Poverty rate | 11.9% | 0.0% |
| Average household size | 2.78 | 1.88 |
| Mean commute (minutes) | 41 | — |
| Median year structure built | 2002 | 1985 |