Before (end of 2020) (58 seats, Open Council Data)
Liberal Democrats 25 · Conservative 23 · Labour 6 · Other 3 · Green 1
After (end of 2021) (58 seats, Open Council Data)
Liberal Democrats 30 · Conservative 23 · Labour 2 · Other 2 · Green 1
Ward results
Ashley1 seat · turnout 44.6%
| Pedroz M.A. | Liberal Democrats | 1,673 ✓ |
| Stephane Antoine Farenga | Green | 372 |
| D.D. Ratnasekera | Conservative | 348 |
| Pearce J.B. | Labour | 311 |
| Ajantha Kangaha Arachchi | WP | 37 |
Batchwood1 seat · turnout 45.5%
| Sinéad Keeley Howland | Liberal Democrats | 1,311 ✓ |
| Andrews R.W.P. | Conservative | 506 |
| Pakenham M. | Labour | 483 |
| McQuade A. | Green | 188 |
| Thurston D.E. | REF | 35 |
Clarence1 seat · turnout 48.6%
| Carol White | Liberal Democrats | 1,643 ✓ |
| Matt Fisher | Green | 458 |
| Killen A. | Conservative | 388 |
| Sanderson G.W. | Labour | 172 |
Cunningham1 seat · turnout 44.1%
| Harrison G. | Liberal Democrats | 1,220 ✓ |
| Sweeny J. | Conservative | 581 |
| Paton J.M. | Labour | 227 |
| Fletcher P. | Green | 146 |
Harpenden East2 seats · turnout 42.6%
| Pip Liver | Liberal Democrats | 1,100 ✓ |
| Paul David De Kort | Liberal Democrats | 993 ✓ |
| Matthew Stephens | Conservative | 935 |
| Paul Guy Foster | Conservative | 817 |
| Eleanor Elizabeth Clarke | Labour | 263 |
| James Nathaniel Gill | Labour | 228 |
| Angela Helen Troughton | Green | 189 |
| Dee Thomas | Green | 184 |
Harpenden North1 seat · turnout 43.4%
| Allison Frances Wren | Liberal Democrats | 1,124 ✓ |
| Sue Griffiths | Conservative | 1,005 |
| Tracy Michelle Morris | Green | 195 |
| Emily Jane Tilly | Labour | 149 |
Harpenden North East2 seats
| T.C. Heritage | Conservative | 2,942 ✓ |
| Phillips J.K. | Liberal Democrats | 1,325 ✓ |
| Riley K.D. | Green | 654 |
| L.A. Spiri | Labour | 453 |
Harpenden South2 seats · turnout 43.9%
| David Heritage | Conservative | 1,325 ✓ |
| Mark Beashel | Conservative | 1,317 ✓ |
| Denise Bowser | Liberal Democrats | 536 |
| Maddie Liver | Liberal Democrats | 459 |
| Nina Mai Vinther | Green | 307 |
| Linda Ann Spiri | Labour | 230 |
| David Crew | Labour | 229 |
| Ian Troughton | Green | 170 |
Harpenden West1 seat · turnout 48.6%
| Scriven L. | Conservative | 1,293 ✓ |
| Phillips J.K. | Liberal Democrats | 863 |
| Riley K.D. | Green | 565 |
| Madole R.B. | Labour | 233 |
London Colney1 seat · turnout 32.9%
| Sarah Tallon | Conservative | 897 ✓ |
| Dreda Gordon | Labour | 837 |
| Tony Lillico | Liberal Democrats | 478 |
| Park-Crowne M.S.C. | Green | 189 |
Marshalswick North1 seat
| W. Jankowski | Liberal Democrats | 1,607 ✓ |
| S. Gaygusuz | Conservative | 899 |
| Bishara N. | Green | 269 |
| I.C. Grant | Labour | 207 |
Marshalswick South1 seat · turnout 45.4%
| Raj Visram | Liberal Democrats | 1,230 ✓ |
| Claudio Duran | Conservative | 722 |
| James Richard Lomas | Green | 207 |
| Nick Pullinger | Labour | 175 |
Park Street1 seat · turnout 45.2%
| Curthoys R. | Conservative | 946 ✓ |
| Simon Mostyn | Liberal Democrats | 807 |
| Yates D.J. | Independent | 616 |
| McGrath M.G. | Labour | 167 |
| Swift L.C. | Green | 116 |
Redbourn1 seat · turnout 43.9%
| Chapman T.A. | Conservative | 1,027 ✓ |
| Gunson B.R. | Liberal Democrats | 683 |
| Vegro S. | Labour | 290 |
| Brockway D.G. | Green | 137 |
Sopwell1 seat · turnout 47.3%
| Sarwar Shamsher | Liberal Democrats | 1,492 ✓ |
| Smith J. | Labour | 528 |
| Devi S. | Conservative | 398 |
| Baker L.C. | Green | 165 |
St Peters1 seat · turnout 43.5%
| Simon Grover | Green | 1,719 ✓ |
| G. Calle | Conservative | 650 |
| Bailey E. | Labour | 509 |
St Stephen1 seat
| Jacob A.S.E. | Conservative | 1,177 ✓ |
| Smith A.M. | Liberal Democrats | 1,120 |
| Nick Bainbridge | Green | 125 |
| Janet Blackwell | Labour | 102 |
St. Albans East3 seats
| S. Walkington | Liberal Democrats | 3,575 ✓ |
| H.R. Campbell | Liberal Democrats | 2,839 ✓ |
| S. Gaygusuz | Conservative | 1,256 ✓ |
| Devi S. | Conservative | 1,174 |
| J. Newmark | Labour | 628 |
| Smith J. | Labour | 610 |
| D.L. Durant-Taylor | Green | 374 |
| J. Littlewood | Green | 309 |
| Butchart A.S. | REF | 80 |
| Thurston D.E. | REF | 72 |
Verulam1 seat · turnout 55.1%
| Chris Davies | Liberal Democrats | 1,888 ✓ |
| Alexandra Faika Clark | Conservative | 898 |
| Whittome C. | Green | 173 |
| Chester L.S. | Labour | 134 |
| Butchart A.S. | REF | 36 |
Wheathampstead1 seat · turnout 46.3%
| Clark G. | Conservative | 1,264 ✓ |
| Batt B. | Liberal Democrats | 692 |
| Hitch O.J. | Green | 216 |
| Hegerty J. | Labour | 145 |
