| Place Name | New Castle |
| Place Type | City |
| ZIP Code(s) | 40050 |
| County | Henry County |
| Area Code(s) | 502 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,105 |
| Population Growth Rate (2010-19) | -3.07% |
| Majority Ethnicity | White 93% |
| Metro/Micro Stats Area | Louisville/Jefferson County, KY-IN |
| US Congressional District(s) | Kentucky 4th |
| State House Districts | 47 |
| State Senate Districts | 20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93% |
| African American | 4.3% |
| Hispanic | 0.12% |
| Asian | 0.61% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.97% |