Area, Population and Headquarter of each district
| Sr. No. |
District |
Area
in 000' sq. km |
2001 Census
Population |
Headquarters |
| 1 | Agra (External website that opens in a new window) | 4,027 | 3,620,436 | Agra |
| 2 | Aligarh (External website that opens in a new window) | 3,747 | 2,992,286 | Aligarh |
| 3 | Allahabad (External website that opens in a new window) | 5,425 | 4,936,105 | Allahabad |
| 4 | Ambedkar Nagar (External website that opens in a new window) | 2,372 | 2,026,876 | Akbarpur |
| 5 | Auraiya (External website that opens in a new window) | 2,051 | 1,179,993 | Auraiya |
| 6 | Azamgarh (External website that opens in a new window) | 4,210 | 3,939,916 | Azamgarh |
| 7 | Bagpat (External website that opens in a new window) | 1,389 | 1,163,991 | Bagpat |
| 8 | Bahraich (External website that opens in a new window) | 5,751 | 2,381,072 | Bahraich |
| 9 | Ballia (External website that opens in a new window) | 2,981 | 2,761,620 | Ballia |
| 10 | Balrampur (External website that opens in a new window) | 2,927 | 1,682,350 | Balrampur |
| 11 | Banda (External website that opens in a new window) | 4,418 | 1,537,334 | Banda |
| 12 | Barabanki (External website that opens in a new window) | 3,825 | 2,673,581 | Barabanki |
| 13 | Bareilly (External website that opens in a new window) | 4,120 | 3,618,589 | Bareilly |
| 14 | Basti (External website that opens in a new window) | 3,033 | 2,084,814 | Basti |
| 15 | Bijnor (External website that opens in a new window) | 4,561 | 3,131,619 | Bijnor |
| 16 | Budaun (External website that opens in a new window) | 5,168 | 3,069,426 | Budaun |
| 17 | Bulandshahr (External website that opens in a new window) | 3,717 | 2,913,122 | Bulandshahr |
| 18 | Chandauli (External website that opens in a new window) | 2,554 | 1,643,251 | Chandauli |
| 19 | Chitrakoot (External website that opens in a new window) | 3,205 | 766,225 | Chitrakoot |
| 20 | Deoria (External website that opens in a new window) | 2,535 | 2,712,650 | Deoria |
| 21 | Etah (External website that opens in a new window) | 4,446 | 2,790,410 | Etah |
| 22 | Etawah (External website that opens in a new window) | 2,288 | 1,338,871 | Etawah |
| 23 | Faizabad (External website that opens in a new window) | 2,764 | 2,088,928 | Faizabad |
| 24 | Farrukhabad (External website that opens in a new window) | 2,279 | 1,570,408 | Fatehgarh |
| 25 | Fatehpur (External website that opens in a new window) | 4,152 | 2,308,384 | Fatehpur |
| 26 | Firozabad (External website that opens in a new window) | 2,361 | 2,052,958 | Firozabad |
| 27 | Gautam Buddha Nagar (External website that opens in a new window) | 1,268 | 1,202,030 | Noida |
| 28 | Ghaziabad (External website that opens in a new window) | 1,955 | 3,290,586 | Ghaziabad |
| 29 | Ghazipur (External website that opens in a new window) | 3,377 | 3,037,582 | Ghazipur |
| 30 | Gonda (External website that opens in a new window) | 4,425 | 2,765,586 | Gonda |
| 31 | Gorakhpur (External website that opens in a new window) | 3,321 | 3,769,456 | Gorakhpur |
| 32 | Hamirpur (External website that opens in a new window) | 4,316 | 1,043,724 | Hamirpur |
| 33 | Hardoi (External website that opens in a new window) | 5,986 | 3,398,306 | Hardoi |
| 34 | Hathras (External website that opens in a new window) | 1,751 | 1,336,031 | Hathras |
| 35 | Jalaun (External website that opens in a new window) | 4,565 | 1,454,452 | Orai |
| 36 | Jaunpur (External website that opens in a new window) | 4,038 | 3,911,679 | Jaunpur |
| 37 | Jhansi (External website that opens in a new window) | 5,024 | 1,744,931 | Jhansi |
| 38 | Jyotiba Phule Nagar (External website that opens in a new window) | 2,320 | 1,499,068 | Amroha |
| 39 | Kannauj (External website that opens in a new window) | 1,994 | 1,388,923 | Kannauj |
| 40 | Kanpur Dehat (External website that opens in a new window) | 3,146 | 1,563,336 | Akbarpur |
| 41 | Kanpur Nagar (External website that opens in a new window) | 3,030 | 4,167,999 | Kanpur |
| 42 | Kaushambi (External website that opens in a new window) | 1,835 | 1,293,154 | Kaushambi |
| 43 | Kheri (External website that opens in a new window) | 7,680 | 3,207,232 | Lakhimpur |
| 44 | Kushinagar (External website that opens in a new window) | 2,910 | 2,893,196 | Padrauna |
| 45 | Lalitpur (External website that opens in a new window) | 5,039 | 977,734 | Lalitpur |
| 46 | Lucknow (External website that opens in a new window) | 2,528 | 3,647,834 | Lucknow |
| 47 | Mahoba (External website that opens in a new window) | 2,849 | 708,447 | Mahoba |
| 48 | Maharajganj (External website that opens in a new window) | 2,951 | 2,173,878 | Maharajganj |
| 49 | Mainpuri (External website that opens in a new window) | 2,746 | 1,596,718 | Mainpuri |
| 50 | Mathura (External website that opens in a new window) | 3,332 | 2,074,516 | Mathura |
| 51 | Mau (External website that opens in a new window) | 1,713 | 1,853,997 | Mau |
| 52 | Meerut (External website that opens in a new window) | 2,521 | 2,997,361 | Meerut |
| 53 | Mirzapur (External website that opens in a new window) | 4,522 | 2,116,042 | Mirzapur |
| 54 | Moradabad (External website that opens in a new window) | 3,646 | 3,810,983 | Moradabad |
| 55 | Muzaffarnagar (External website that opens in a new window) | 4,008 | 3,543,362 | Muzaffarnagar |
| 56 | Pilibhit (External website that opens in a new window) | 3,499 | 1,645,183 | Pilibhit |
| 57 | Pratapgarh (External website that opens in a new window) | 3,717 | 2,731,174 | Pratapgarh |
| 58 | RaeBareli (External website that opens in a new window) | 4,586 | 2,872,335 | RaeBareli |
| 59 | Rampur (External website that opens in a new window) | 2,367 | 1,923,739 | Rampur |
| 60 | Saharanpur (External website that opens in a new window) | 3,689 | 2,896,863 | Saharanpur |
| 61 | Sant Kabir Nagar (External website that opens in a new window) | 1,442 | 1,420,226 | Khalilabad |
| 62 | Sant Ravidas Nagar (External website that opens in a new window) | 959 | 1,353,705 | Gyanpur |
| 63 | Shahjahanpur (External website that opens in a new window) | 4,575 | 2,547,855 | Shahjahanpur |
| 64 | Shravasti (External website that opens in a new window) | 1,126 | 1,176,391 | Shravasti |
| 65 | Siddharthnagar (External website that opens in a new window) | 2,752 | 2,040,085 | Siddharthnagar (Navgarh) |
| 66 | Sitapur (External website that opens in a new window) | 5,743 | 3,619,661 | Sitapur |
| 67 | Sonbhadra (External website that opens in a new window) | 6,788 | 1,463,519 | Robertsganj |
| 68 | Sultanpur (External website that opens in a new window) | 4,436 | 3,214,832 | Sultanpur |
| 69 | Unnao (External website that opens in a new window) | 4,558 | 2,700,324 | Unnao |
| 70 | Varanasi (External website that opens in a new window) | 1,578 | 3,138,671 | Varanasi |
| 71 | Manyavar Kanshiram Nagar (External website that opens in a new window) | 1,993 | 1,228,705 | Manyavar Knshiram Nagar (Kasganj) |
| 72 | Prabuddha Nagar | 1,240 | 0 | Shamli |
| 73 | Panchsheel Nagar | 1,124 | 0 | Hapur |
| 74 | Bhim Nagar | 2,422 | 0 | Chandausi (temporary) |
| 75 | Chhatrapati Shahuji Maharaj Nagar (External website that opens in a new window) | 0 | 0 | Gauriganj |
