ZIP Code 17921 has segments in 2 Counties (Columbia, Schuylkill).
The ZIP Code maps and database are updated 4 times per year.
Database updated: June 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 8,251 (100%) |
| Population in Households | 7,076 (85.8%) |
| Population in Families | 5,413 (65.6%) |
| Population in Group Quarters1 | 1,175 (14.2%) |
| Population Density | 169 |
| Diversity Index2 | 34 |
INCOME | |
| Median Household Income | $70,391 |
| Average Household Income | $82,301 |
| % of Income for Mortgage4 | 15% |
| Per Capita Income | $30,455 |
| Wealth Index5 | 64 |
| Socioeconomic Status Index6 | Moderate (48.5) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 3,686 (100%) |
| Owner Occupied HU | 2,422 (65.7%) |
| Renter Occupied HU | 591 (16.0%) |
| Vacant Housing Units | 673 (18.3%) |
| Median Home Value | $163,971 |
| Average Home Value | $183,988 |
| Housing Affordability Index3 | 144 |
HOUSEHOLDS | |
| Total Households | 3,013 |
| Average Household Size | 2.35 |
| Family Households | 1,867 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.20% | 0.07% |
| Households | -0.28% | -0.11% |
| Families | -0.18% | |
| Median Household Income | 2.08% | |
| Per Capita Income | 1.91% | |
| Owner Occupied HU | -0.06% |
The table below compares 17921 to the other 1,696 ZIP Codes in Pennsylvania by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 477 | 72nd |
| Population Density | # 966 | 43rd |
| Median Household Income | # 896 | 47th |
| Housing Affordability Index | # 1459 | 86th |
| Per Capita Income | # 1375 | 19th |
| Diversity Index | # 452 | 73rd |
Additional comparisons and rankings can be made with a VERY EASY TO USE Pennsylvania Census Data Comparison Tool.