Redcar and Cleveland has the worst teenage pregnancy rate in the country, with 18.4 pregnancies for every 1,000 girls aged 16 or under, the latest government statistics show. The London boroughs of Southwark, Haringey and Lambeth all had more than 16 teenage pregnancies per 1,000.
Teenage girls in Buckinghamshire were the least likely to become pregnant, with 2.8 for every 1,000. Affluent boroughs such as Windsor and Maidenhead, Kingston upon Thames, Bedfordshire and Surrey also had low rates.
The number of pregnant under-16s nationally rose from 7,181 in 2004 to 7,462 in 2005.
