Postcode District SG3 is located in the region of North Hertfordshire and covers the areas of Knebworth, Woolmer Green, Datchworth. There are about 305 postcodes in SG3 out of which 201 are active.
SG3 Postcode District has an approximate population of 7127 and 3033 households.
| Sector | Population | Households | Postcodes | Active Postcodes |
|---|---|---|---|---|
| SG3 6 | 7127 | 3033 | 305 | 201 |
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Last Updated On 10th May, 2017