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 4AA | 51.57387200 | -0.34423700 | 1 | 1 | 514842 | 187410 |
| HA1 4AB | 51.57455400 | -0.34545400 | 15 | 49 | 514756 | 187484 |
| HA1 4AD | 51.57501900 | -0.34795500 | 19 | 60 | 514581 | 187532 |
| HA1 4AE | 51.57480100 | -0.34954300 | 7 | 19 | 514472 | 187505 |
| HA1 4AF | 51.57503600 | -0.35108600 | 12 | 27 | 514364 | 187529 |
| HA1 4AG | 51.57489300 | -0.35432400 | 34 | 97 | 514140 | 187508 |
| HA1 4AH | 51.57544600 | -0.35067400 | 10 | 45 | 514392 | 187575 |
| HA1 4AJ | 51.57591000 | -0.34861600 | 22 | 71 | 514533 | 187630 |
| HA1 4AL | 51.57576300 | -0.34775500 | 11 | 24 | 514593 | 187615 |
| HA1 4AN | 51.57613700 | -0.34684700 | 4 | 11 | 514655 | 187658 |
| HA1 4AP | 51.57598700 | -0.34513500 | 26 | 59 | 514774 | 187644 |
| HA1 4AQ | 51.57533000 | -0.35460400 | 39 | 127 | 514120 | 187556 |
| HA1 4AR | 51.57583900 | -0.34420200 | 63 | 166 | 514839 | 187629 |
| HA1 4AS | 51.57544300 | -0.34613600 | 27 | 60 | 514706 | 187582 |
| HA1 4AW | 51.57645300 | -0.34566700 | 26 | 81 | 514736 | 187695 |
| HA1 4AX | 51.57788500 | -0.34519600 | 36 | 98 | 514765 | 187855 |
| HA1 4AY | 51.57735500 | -0.34400300 | 12 | 43 | 514849 | 187798 |
| HA1 4AZ | 51.57843100 | -0.34563800 | 24 | 34 | 514733 | 187915 |
| HA1 4BD | 51.58112400 | -0.34403900 | 6 | 13 | 514837 | 188217 |
| HA1 4BG | 51.59454400 | -0.34543400 | N/A | N/A | 514707 | 189707 |
| HA1 4BH | 51.57656800 | -0.34935700 | 38 | 100 | 514480 | 187702 |
| HA1 4BJ | 51.57663000 | -0.34980900 | 22 | 54 | 514449 | 187708 |
| HA1 4BL | 51.57597700 | -0.35072700 | 33 | 74 | 514387 | 187634 |
| HA1 4BN | 51.57566300 | -0.35152600 | 7 | 21 | 514332 | 187598 |
| HA1 4BP | 51.57633000 | -0.35153700 | 9 | 28 | 514330 | 187672 |
| HA1 4BS | 51.57653400 | -0.35067800 | 18 | 36 | 514389 | 187696 |
| HA1 4BT | 51.57685000 | -0.35156900 | 9 | 33 | 514326 | 187730 |
| HA1 4BU | 51.57735900 | -0.35051900 | 33 | 91 | 514397 | 187788 |
| HA1 4BW | 51.57666900 | -0.35208100 | 38 | 117 | 514291 | 187709 |
| HA1 4BX | 51.57709400 | -0.35022500 | 7 | 21 | 514419 | 187759 |
| HA1 4BY | 51.57829600 | -0.35206500 | 23 | 83 | 514288 | 187890 |
| HA1 4BZ | 51.57864900 | -0.35145300 | 5 | 14 | 514330 | 187930 |
| HA1 4DA | 51.57814600 | -0.35080800 | 38 | 97 | 514375 | 187875 |
| HA1 4DB | 51.57854000 | -0.35005700 | 6 | 19 | 514427 | 187920 |
| HA1 4DD | 51.57845700 | -0.34944700 | 3 | 14 | 514469 | 187912 |
| HA1 4DE | 51.57817600 | -0.34973800 | 12 | 32 | 514450 | 187880 |
| HA1 4DF | 51.57769300 | -0.34946000 | 11 | 29 | 514470 | 187827 |
| HA1 4DG | 51.57760200 | -0.34872800 | 11 | 27 | 514521 | 187818 |
| HA1 4DH | 51.57744300 | -0.34769400 | 27 | 74 | 514593 | 187802 |
| HA1 4DJ | 51.57753200 | -0.34695500 | 69 | 221 | 514644 | 187813 |
| HA1 4DL | 51.57738700 | -0.34558900 | 23 | 89 | 514739 | 187799 |
| HA1 4DP | 51.57932400 | -0.34441400 | 52 | 125 | 514816 | 188016 |
| HA1 4DQ | 51.57782400 | -0.34786800 | 25 | 66 | 514580 | 187844 |
| HA1 4DR | 51.57867600 | -0.34773600 | 60 | 162 | 514587 | 187939 |
| HA1 4DS | 51.57831600 | -0.34774900 | 49 | 121 | 514587 | 187899 |
| HA1 4DT | 51.57787500 | -0.35089700 | 23 | 61 | 514370 | 187845 |
| HA1 4DU | 51.57757600 | -0.35072000 | 27 | 77 | 514383 | 187812 |
| HA1 4DX | 51.57789700 | -0.35296700 | 45 | 128 | 514227 | 187844 |
| HA1 4DZ | 51.57891500 | -0.35384700 | 32 | 97 | 514163 | 187956 |
| HA1 4EA | 51.57846600 | -0.35328600 | 25 | 86 | 514203 | 187907 |