| ZIP Code | 18631 |
|---|---|
| City | Mifflinville |
| State | Pennsylvania (PA) |
| County | Columbia County |
| Area Code | 272/570 |
| Elevation | 575 ft |
| Latitude | 41.030711 |
|---|---|
| Longitude | -76.302779 |
| Timezone | New York (DST) |
| FIPS | 42037 |
| ZIP Type | PO Box |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 48.3 yrs ↓ 7% since 2019 |
|---|---|
| Avg Household Size | 2.17 |
| Below Poverty | 11.0% ▲ 10% above avg |
| College Grads | 35.4% ▼ 9% below avg |
| Unemployment | 0.0% ▼ 100% below avg |
| HS Graduate | 405 (48.3%) |
| Some College | 97 (11.6%) |
| Associates | 39 (4.7%) |
| Bachelors | 53 (6.3%) |
| Graduate Degree | 244 (29.1%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $49,643 ▼ 35% below avg |
|---|---|
| Median Home Value | $214,900 ▼ 23% below avg ↑ 60% since 2019 |
| Home/Income Ratio | 4.3x (nat avg ~3.5x) |
| Median Rent | $990/mo ↑ 11% since 2019 |
| Total Units | 555 |
| Vacant Units | 45 |
| Avg HH Size | 2.17 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 555 |
|---|---|
| Vacant | 45 |
| Owner Occupied | 86.5% |
| Renter Occupied | 13.5% |
| Avg HH Size | 2.17 |
ZIP code 18631 is located in Mifflinville, Pennsylvania, within Columbia County. With a population of 1,109, this is a sparsely populated ZIP code with a mature community — the median age is 48.3 years. Economically, 18631 is a working-class ZIP code: the median household income of $49,643 is below the national average.
Real estate in ZIP code 18631 represents an affordable housing market. The median home value of $214,900 is below the national average. Renters can expect to pay around $990 per month in median rent. Homeownership is strong here — 86.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 60% since 2019.
The population of 18631 is primarily White (97.39%). Residents are moderately educated — 35.4% hold a bachelor's degree or higher, which is near the national average. Poverty affects some residents at 11.0%.
About 14% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 85%.
Overall, ZIP code 18631 in Mifflinville, PA is characterized as working-class, moderately educated, a mature community, and predominantly owner-occupied. With 1,109 residents, a median household income of $49,643, and a median home value of $214,900, it offers a clear picture of life in this part of Pennsylvania.