See main article: Lancaster City Council elections.
Elections to Lancaster City Council took place on 3 May 2003. The whole council was up for election and it remained in No Overall Control.
Following the election, the composition of the council was as follows:
| Party | Seats | +/- | ||
|---|---|---|---|---|
| 20 | ||||
| Morecambe Bay Independents | 11 | |||
| 10 | ||||
| 8 | ||||
| 7 | ||||
| Independent | 4 | |||
|- style="background-color:#F6F6F6"| colspan="7" style="text-align: right; margin-right: 0.5em" | Turnout| style="text-align: right; margin-right: 0.5em" | 36| style="text-align: right; margin-right: 0.5em" | 36,220| style="text-align: right; margin-right: 0.5em" | |-[1]