| Place Name | Willow Grove |
| Place Type | Census Designated Place |
| ZIP Code(s) | 19090 |
| County | Montgomery County |
| Area Code(s) | 215,267,445 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 16,105 |
| Population Growth Rate (2010-19) | -12.69% |
| Majority Ethnicity | White 80.51% |
| Metro/Micro Stats Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| US Congressional District(s) | Pennsylvania 13th |
| State House Districts | 152 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.51% |
| African American | 9.05% |
| Hispanic | 0.18% |
| Asian | 3.44% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.82% |