| Dewart, Pennsylvania | |
| Settlement Type: | Census-designated place |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Northumberland |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.28 |
| Area Land Km2: | 5.28 |
| Area Water Km2: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 1385 |
| Population Density Km2: | 262.46 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | ZIP code |
| Postal Code: | 17777[2] |
| Area Code: | 272 and 570 |
| Blank Name: | FIPS code |
| Blank Info: | 42-19048 |
| Blank1 Name: | GNIS feature ID |
| Area Total Sq Mi: | 2.04 |
| Area Land Sq Mi: | 2.04 |
| Area Water Sq Mi: | 0.00 |
| Population Density Sq Mi: | 679.92 |
Dewart is a census-designated place located in Delaware Township, Northumberland County in the state of Pennsylvania. The community is located very close to the West Branch Susquehanna River along Pennsylvania Route 405 in far northern Northumberland County. As of the 2010 census the population was 1,471 residents.[3]