Nordelph is a civil parish near Downham Market in the English county of Norfolk. The parish covers an area of 16.57 km² and had a population of 375 in 151 households at the 2001 census, increasing to 405 at the 2011 Census. In 1930 a new civil parish of Nordelph was created in Downham Rural District, taking land mostly out of the Marshland RD parishes o…Nordelph is a civil parish near Downham Market in the English county of Norfolk. The parish covers an area of 16.57 km² and had a population of 375 in 151 households at the 2001 census, increasing to 405 at the 2011 Census. In 1930 a new civil parish of Nordelph was created in Downham Rural District, taking land mostly out of the Marshland RD parishes of Upwell and Outwell.