DT1 3ER is located in the Dorchester Poundbury electoral ward, within the unitary authority of Dorset and the English Parliamentary constituency of West Dorset. The Sub Integrated Care Board (ICB) Location is NHS Dorset ICB - 11J and the police force is Dorset. This postcode has been in use since June 2019.


| Easting | 367718 |
| Northing | 90974 |
| Latitude | 50.717481 |
| Longitude | -2.458635 |
| Country | England |
| Postcode District | DT1 |
| Ward | Dorchester Poundbury |
|---|---|
| Constituency | West Dorset |
2022 22 APR £397,500 |
2019 26 APR £335,000 |
| Chestnut Way (Normandy Way) | Dorchester | 391m |
| Malta Close (Normandy Way) | Dorchester | 394m |
| Peverill Avenue East (Peverell Avenue East) | Poundbury | 455m |
| Poundbury Crescent (Cedar Road) | Dorchester | 470m |
| Peverill Avenue East (Peverell Avenue East) | Poundbury | 470m |
| Dorchester West Station | 1.3km |
| Dorchester South Station | 1.8km |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Poundbury | 17:00 | 11:00 | 784m |
| Celtic Crescent | 17:30 | 11:30 | 1,149m |
| Victoria Park | 17:15 | 11:30 | 1,180m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for DT1 3ER:
| ITL 1 Code | Name |
|---|---|
| TLK | South West (England) |
| ITL 2 Code | Name |
| TLK2 | Dorset and Somerset |
| ITL 3 Code | Name |
| TLK25 | Dorset |
| LAU 1 Code | Name |
| E06000059 | Dorset |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for DT1 3ER:
| Code | Name | |
|---|---|---|
| OA | E00166096 | |
| LSOA | E01032641 | West Dorset 009F |
| MSOA | E02004277 | West Dorset 009 |
| DT1 3DF | Liscombe Street | 283m |
| DT1 2PZ | Holly Close | 304m |
| DT1 2QA | Malta Close | 309m |
| DT1 3DR | Furlong Mews | 311m |
| DT1 2PY | Fir Tree Close | 314m |
| DT1 3DB | Reeve Street | 326m |
| DT1 2PP | Normandy Way | 353m |
| DT1 2PW | Wyvern Road | 366m |
| DT1 2PT | Chestnut Way | 382m |
| DT1 3DH | Marsden Street | 393m |