Broadband Deals Harwich

This page covers 718 live residential postcodes in and around Harwich, mainly in the postcode districts CO11 (part) and CO12. The postcodes it covers fall in five postcode sectors: CO11 1, CO11 2, CO12 3, CO12 4 and CO12 5. A district marked “part” lies only partly in this area. Enter your full postcode in the comparison on this page to see the deals available at your address. Source: ONS Postcode Directory, May 2025.

Of the 718 live residential postcodes this page covers, the largest share is in the Tendring council area, in the county of Essex. Source: ONS Postcode Directory, May 2025.

Ofcom publishes full-fibre figures by council area rather than by town. In the Tendring council area, which includes Harwich, 79.4% of premises (63,027 of 79,410) could get full fibre, compared with 79.8% across Essex and 81% across the UK. In Harwich itself, 82.1% of premises could get gigabit-capable broadband, over full fibre or upgraded cable. Whether your home can get it depends on your address: enter your postcode in the comparison on this page to see the deals available there. Source: Ofcom Connected Nations, January 2026.

10,689 premises in Harwich (82.1% of 13,024) could get gigabit-capable broadband, with download speeds of 1 Gbit/s or more; the figure is 88.2% across Essex and 87.8% across the UK. Source: Ofcom Connected Nations, January 2026.