See: Conservation in the United Kingdom, Cycleways in Wales, Cycleways in Scotland[?], Cycleways in Northern Ireland[?], List of cycleways
Norfolk
... The average household size is 2.86 and the average family size is 3.32. In the town the population is spread out with 24.7% under the age of 18, 7.4% from 18 to 24, ...