The 26-year-old, who joined the Bantams from non-league outfit Guiseley in 2009, helped the club to win promotion from League Two last season.
Hanson's previous contract was due to expire in the summer.
Bradford boss Phil Parkinson told BBC Radio Leeds: "I feel it's an important signing for us because he's improving all the time."
Hanson has scored six goals in 20 appearances this season.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Notts County | 6 | 4 | 2 | 0 | 14 | 6 | 8 | 14 |
| 2 | Gillingham | 6 | 4 | 1 | 1 | 9 | 2 | 7 | 13 |
| 3 | BarrowBarrow | 6 | 4 | 1 | 1 | 9 | 3 | 6 | 13 |
| 4 | AFC Wimbledon | 5 | 4 | 0 | 1 | 9 | 4 | 5 | 12 |
| 5 | Walsall | 6 | 4 | 0 | 2 | 9 | 4 | 5 | 12 |
| 6 | Doncaster RoversDoncaster | 6 | 4 | 0 | 2 | 10 | 8 | 2 | 12 |
| 7 | Port Vale | 7 | 3 | 2 | 2 | 11 | 10 | 1 | 11 |
| 8 | Bradford CityBradford | 6 | 3 | 1 | 2 | 9 | 7 | 2 | 10 |
| 9 | Crewe AlexandraCrewe | 6 | 3 | 1 | 2 | 4 | 7 | -3 | 10 |
| 10 | Chesterfield | 7 | 2 | 3 | 2 | 10 | 6 | 4 | 9 |
| 11 | Newport CountyNewport | 6 | 3 | 0 | 3 | 10 | 13 | -3 | 9 |
| 12 | Fleetwood TownFleetwood | 5 | 2 | 2 | 1 | 6 | 5 | 1 | 8 |
| 13 | Salford City | 5 | 2 | 2 | 1 | 4 | 4 | 0 | 8 |
| 14 | Tranmere RoversTranmere | 5 | 2 | 2 | 1 | 3 | 4 | -1 | 8 |
| 15 | Bromley | 6 | 2 | 1 | 3 | 9 | 10 | -1 | 7 |
| 16 | Harrogate TownHarrogate | 6 | 2 | 1 | 3 | 6 | 7 | -1 | 7 |
| 17 | Cheltenham TownCheltenham | 7 | 2 | 1 | 4 | 9 | 11 | -2 | 7 |
| 18 | Colchester UnitedColchester | 6 | 1 | 3 | 2 | 9 | 10 | -1 | 6 |
| 19 | Swindon TownSwindon | 6 | 1 | 3 | 2 | 7 | 8 | -1 | 6 |
| 20 | MK Dons | 6 | 2 | 0 | 4 | 5 | 8 | -3 | 6 |
| 21 | Grimsby Town | 6 | 2 | 0 | 4 | 8 | 12 | -4 | 6 |
| 22 | Accrington StanleyAccrington | 7 | 0 | 3 | 4 | 8 | 16 | -8 | 3 |
| 23 | Carlisle UnitedCarlisle | 6 | 1 | 0 | 5 | 6 | 14 | -8 | 3 |
| 24 | Morecambe | 6 | 0 | 1 | 5 | 3 | 8 | -5 | 1 |
| > League Two Full Table | |||||||||
