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 4HD | 51.57941200 | -0.35082700 | 30 | 82 | 514371 | 188016 |
| HA1 4HE | 51.58052300 | -0.35373100 | 25 | 71 | 514167 | 188135 |
| HA1 4HF | 51.58280600 | -0.35483900 | 14 | 29 | 514085 | 188387 |
| HA1 4HJ | 51.58330400 | -0.35586800 | 6 | 10 | 514012 | 188441 |
| HA1 4HL | 51.58270900 | -0.35444600 | 7 | 22 | 514112 | 188377 |
| HA1 4HN | 51.58429200 | -0.35884100 | 50 | 158 | 513804 | 188546 |
| HA1 4HX | 51.58057700 | -0.34595700 | N/A | N/A | 514705 | 188153 |
| HA1 4HY | 51.58093700 | -0.34867900 | 8 | 29 | 514516 | 188189 |
| HA1 4HZ | 51.58150700 | -0.34491200 | 42 | 115 | 514776 | 188258 |
| HA1 4JA | 51.58137200 | -0.34682300 | N/A | N/A | 514643 | 188240 |
| HA1 4JD | 51.58134600 | -0.34881500 | 17 | 55 | 514506 | 188234 |
| HA1 4JE | 51.58168700 | -0.34956100 | 14 | 45 | 514453 | 188271 |
| HA1 4JF | 51.58201200 | -0.34965000 | 5 | 18 | 514446 | 188307 |
| HA1 4JG | 51.58189400 | -0.34893300 | 25 | 61 | 514496 | 188295 |
| HA1 4JH | 51.58279500 | -0.34952800 | 33 | 93 | 514453 | 188394 |
| HA1 4JJ | 51.58201500 | -0.35053100 | 14 | 57 | 514385 | 188306 |
| HA1 4JN | 51.58287500 | -0.35026900 | 32 | 90 | 514401 | 188402 |
| HA1 4JP | 51.58228300 | -0.35152400 | 16 | 47 | 514316 | 188334 |
| HA1 4JQ | 51.58293600 | -0.34888100 | 32 | 67 | 514497 | 188411 |
| HA1 4JR | 51.58344700 | -0.35628800 | N/A | N/A | 513983 | 188456 |
| HA1 4JS | 51.58279400 | -0.35285500 | N/A | N/A | 514222 | 188389 |
| HA1 4JT | 51.58287300 | -0.35330000 | 17 | 46 | 514191 | 188397 |
| HA1 4JU | 51.58325800 | -0.35449800 | 11 | 38 | 514107 | 188438 |
| HA1 4JW | 51.58306100 | -0.35070900 | 35 | 97 | 514370 | 188422 |
| HA1 4JX | 51.58363200 | -0.35553800 | 14 | 33 | 514034 | 188478 |
| HA1 4JY | 51.58398100 | -0.35666600 | 15 | 42 | 513955 | 188515 |
| HA1 4JZ | 51.58437400 | -0.35776300 | 3 | 10 | 513878 | 188557 |
| HA1 4LA | 51.58431000 | -0.35751300 | N/A | N/A | 513896 | 188550 |
| HA1 4LB | 51.58548100 | -0.36021300 | 26 | 96 | 513706 | 188676 |
| HA1 4LP | 51.58169300 | -0.34790800 | 8 | 26 | 514568 | 188274 |
| HA1 4LR | 51.58265900 | -0.34773600 | 49 | 135 | 514577 | 188382 |
| HA1 4LS | 51.58276500 | -0.34818000 | 28 | 78 | 514546 | 188393 |
| HA1 4LT | 51.58373900 | -0.34903900 | 20 | 53 | 514484 | 188500 |
| HA1 4LU | 51.58402700 | -0.35032800 | 19 | 42 | 514394 | 188530 |
| HA1 4LX | 51.58414900 | -0.34945700 | 45 | 94 | 514454 | 188545 |
| HA1 4LY | 51.58324000 | -0.35130900 | 31 | 96 | 514328 | 188441 |
| HA1 4LZ | 51.58323900 | -0.35185800 | 36 | 112 | 514290 | 188440 |
| HA1 4NA | 51.58431000 | -0.35189100 | 6 | 25 | 514285 | 188559 |
| HA1 4NB | 51.58477600 | -0.35308700 | 36 | 110 | 514201 | 188609 |
| HA1 4ND | 51.58379500 | -0.35303600 | 29 | 83 | 514207 | 188500 |
| HA1 4NE | 51.58393600 | -0.35347800 | 28 | 82 | 514176 | 188515 |
| HA1 4NF | 51.58418600 | -0.35459500 | 23 | 64 | 514098 | 188541 |
| HA1 4NG | 51.58407100 | -0.35412300 | 26 | 76 | 514131 | 188529 |
| HA1 4NH | 51.58437500 | -0.35531000 | 16 | 54 | 514048 | 188561 |
| HA1 4NJ | 51.58449800 | -0.35569500 | 15 | 40 | 514021 | 188574 |
| HA1 4NL | 51.58464000 | -0.35619500 | 5 | 23 | 513986 | 188589 |
| HA1 4NN | 51.58507600 | -0.35586200 | 5 | 13 | 514008 | 188638 |
| HA1 4NQ | 51.58534300 | -0.35569300 | 18 | 54 | 514019 | 188668 |
| HA1 4PA | 51.58589900 | -0.35428700 | 63 | 169 | 514115 | 188732 |
| HA1 4PB | 51.58560400 | -0.35441400 | 54 | 160 | 514107 | 188699 |