Champions Haringey Borough were promoted to the Premier League, while Lowestoft Town went in the opposite direction.
Cambridge City and Colney Heath step up to the Premier Division after finishing as Division 1’s top two.
With the five new members, Division 1 is now split into North and South regions.
Bishops Stortford, Cambridge United Reserves, Harlow Town and Ipswich Town Development all won their County Leagues last season, while Kings Lynn Town ended third in Norfolk.
Eastern League 2017-18 Constitution
Premier Division – Acle United, AFC Dunstable, AFC Sudbury, Billericay Town, Bedford, Brentwood Town, Cambridge City, Colney Heath, Colchester Town, Lowestoft Town, Royston Town, Writtle
Division 1 North – Cambridge United Res, Histon, Ipswich Town Dev, Ipswich Wanderers, Kings Lynn Town, Silver End United, Wymondham Town
Division 1 South – Bishops Stortford, Harlow Town, Hertford Town, Little Thurrock Dynamos, Hutton, Hoddesdon Town, Offley & Stopsley, Stevenage Res
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