HA1 4 is a postcode sector in Harrow, UK. Below is a complete list of HA1 4 Postcodes (Active). HA1 4 postcode sector comprises of 269 active postcodes. HA1 4 sector has a population of 13310, and it has 4749 properties in the region.
| Population | 13310 |
| Addresses / Property Count | 4749 |
| Active Postcodes | 269 |
| Nearby Postcode Districts | 9 |
| Nearby Postcode Sectors | 4 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| HA1 4SD | 51.58895500 | -0.34973100 | 11 | 20 | 514423 | 189079 |
| HA1 4SE | 51.58861600 | -0.34864600 | 26 | 72 | 514499 | 189043 |
| HA1 4SF | 51.58947100 | -0.34679600 | 40 | 106 | 514625 | 189141 |
| HA1 4SG | 51.58920800 | -0.34661800 | 35 | 96 | 514638 | 189112 |
| HA1 4SH | 51.58726000 | -0.34429200 | 12 | 28 | 514804 | 188899 |
| HA1 4SJ | 51.58715600 | -0.34458500 | 9 | 29 | 514784 | 188887 |
| HA1 4SL | 51.58860400 | -0.34970000 | 9 | 27 | 514426 | 189040 |
| HA1 4SQ | 51.58742000 | -0.34972100 | 15 | 37 | 514428 | 188908 |
| HA1 4SS | 51.59197300 | -0.34568000 | 20 | 65 | 514696 | 189421 |
| HA1 4ST | 51.59145100 | -0.34437100 | 21 | 48 | 514788 | 189365 |
| HA1 4SU | 51.59099300 | -0.34503700 | 12 | 30 | 514743 | 189313 |
| HA1 4SX | 51.59026700 | -0.34457300 | 12 | 41 | 514777 | 189233 |
| HA1 4SY | 51.58950500 | -0.34409500 | 13 | 36 | 514812 | 189149 |
| HA1 4SZ | 51.58851700 | -0.34335800 | 22 | 73 | 514866 | 189040 |
| HA1 4TA | 51.58767100 | -0.34283400 | 7 | 37 | 514904 | 188947 |
| HA1 4TB | 51.58745100 | -0.34256800 | N/A | N/A | 514923 | 188923 |
| HA1 4TD | 51.58698000 | -0.34402100 | 15 | 43 | 514824 | 188868 |
| HA1 4TE | 51.58773500 | -0.34358200 | 14 | 46 | 514852 | 188953 |
| HA1 4TF | 51.58861500 | -0.34409900 | 13 | 41 | 514814 | 189050 |