Postal sector SS1 3
- Eastern Esplanade, Southend-on-sea, SS1 3AA
- Eastern Esplanade, Southend-on-sea, SS1 3AD
- Eastern Esplanade, Southend-on-sea, SS1 3AE
- Plas Newydd, Southend-on-sea, SS1 3AG
- Plas Newydd Close, Southend-on-sea, SS1 3AH
- Shaftesbury Avenue, Southend-on-sea, SS1 3AJ
- Shaftesbury Avenue, Southend-on-sea, SS1 3AL
- Shaftesbury Avenue, Southend-on-sea, SS1 3AN
- Thorpe Hall Avenue, Southend-on-sea, SS1 3AP
- Capadocia Street, Southend-on-sea, SS1 3AQ
- Thorpe Hall Avenue, Southend-on-sea, SS1 3AR
- Thorpe Hall Avenue, Southend-on-sea, SS1 3AS
- Thorpe Hall Avenue, Southend-on-sea, SS1 3AT
- Thorpe Hall Avenue, Southend-on-sea, SS1 3AU
- Shaftesbury Avenue, Southend-on-sea, SS1 3AW
- Burges Road, Southend-on-sea, SS1 3AX
- Burges Road, Southend-on-sea, SS1 3AY
- Gloucester Terrace, Southend-on-sea, SS1 3AZ
- Thorpe Esplanade, Southend-on-sea, SS1 3BA
- Thorpe Esplanade, Southend-on-sea, SS1 3BB
- Burges Terrace, Southend-on-sea, SS1 3BD
- Lynton Road, Southend-on-sea, SS1 3BE
- Thorpe Esplanade, Southend-on-sea, SS1 3BG
- Colbert Avenue, Southend-on-sea, SS1 3BH
- Clieveden Road, Southend-on-sea, SS1 3BJ
- Clieveden Road, Southend-on-sea, SS1 3BL
- Warwick Road, Southend-on-sea, SS1 3BN
- Colbert Avenue, Southend-on-sea, SS1 3BP
- Walton Road, Southend-on-sea, SS1 3BQ
- Greenways, Southend-on-sea, SS1 3BS
- Thorpe Hall Avenue, Southend-on-sea, SS1 3BT
- Colbert Avenue, Southend-on-sea, SS1 3BW
- Colbert Avenue, Southend-on-sea, SS1 3BX
- Wyatts Drive, Southend-on-sea, SS1 3DA
- Wyatts Drive, Southend-on-sea, SS1 3DB
- Thurlow Drive, Southend-on-sea, SS1 3DD
- Wyatts Drive, Southend-on-sea, SS1 3DE
- Rodbridge Drive, Southend-on-sea, SS1 3DF
- Wyatts Drive, Southend-on-sea, SS1 3DG
- Wyatts Drive, Southend-on-sea, SS1 3DH
- Meadow Drive, Southend-on-sea, SS1 3DJ
- Eastern Esplanade, Southend-on-sea, SS1 3DN
- Woodgrange Drive, Southend-on-sea, SS1 3DP
- Brettenham Drive, Southend-on-sea, SS1 3DQ
- Woodgrange Drive, Southend-on-sea, SS1 3DR
- Glebe Close, Southend-on-sea, SS1 3DS
- Butterys, Southend-on-sea, SS1 3DT
- Butterys, Southend-on-sea, SS1 3DU
- Thorpe Hall Avenue, Southend-on-sea, SS1 3DW
- Woodgrange Drive, Southend-on-sea, SS1 3DY
- Woodgrange Drive, Southend-on-sea, SS1 3DZ
- Woodgrange Close, Southend-on-sea, SS1 3EA
- Woodgrange Drive, Southend-on-sea, SS1 3EB
- Woodgrange Drive, Southend-on-sea, SS1 3ED
- Chelsworth Crescent, Southend-on-sea, SS1 3EE
- Chelsworth Crescent, Southend-on-sea, SS1 3EF
- Chelsworth Close, Southend-on-sea, SS1 3EG
- Woodgrange Drive, Southend-on-sea, SS1 3EH
- Woodgrange Drive, Southend-on-sea, SS1 3EJ
- Woodgrange Drive, Southend-on-sea, SS1 3EL
- Station Road, Southend-on-sea, SS1 3EP
- Woodgrange Drive, Southend-on-sea, SS1 3EQ
- The Broadway, Southend-on-sea, SS1 3ES
- The Broadway, Southend-on-sea, SS1 3EU
- The Broadway, Southend-on-sea, SS1 3EX
- Elm Grove, Southend-on-sea, SS1 3EY
- Elm Grove, Southend-on-sea, SS1 3EZ
- Fermoy Road, Southend-on-sea, SS1 3HA
- Tyrone Road, Southend-on-sea, SS1 3HB
- Tyrone Road, Southend-on-sea, SS1 3HD
- Tyrone Road, Southend-on-sea, SS1 3HE
- Tyrone Road, Southend-on-sea, SS1 3HF
- The Broadway, Southend-on-sea, SS1 3HG
- The Broadway, Southend-on-sea, SS1 3HH
- The Broadway, Southend-on-sea, SS1 3HJ
- Thorpe Bay Gardens, Southend-on-sea, SS1 3HL
- The Broadway, Southend-on-sea, SS1 3HQ
- Burges Road, Southend-on-sea, SS1 3HT
- Burges Road, Southend-on-sea, SS1 3HU
- Parkanaur Avenue, Southend-on-sea, SS1 3HX
- Parkanaur Avenue, Southend-on-sea, SS1 3HY
- Johnstone Road, Southend-on-sea, SS1 3HZ
- Parkanaur Avenue, Southend-on-sea, SS1 3JA
- Parkanaur Avenue, Southend-on-sea, SS1 3JB
- Parkanaur Avenue, Southend-on-sea, SS1 3JD
- St. Augustines Avenue, Southend-on-sea, SS1 3JE
- St. Augustines Avenue, Southend-on-sea, SS1 3JF
- St. Augustines Avenue, Southend-on-sea, SS1 3JG
- St. Augustines Avenue, Southend-on-sea, SS1 3JH
- Burges Road, Southend-on-sea, SS1 3JJ
- Burges Road, Southend-on-sea, SS1 3JL
- Burges Road, Southend-on-sea, SS1 3JN
- Burges Road, Southend-on-sea, SS1 3JP
- St. Augustines Avenue, Southend-on-sea, SS1 3JQ
- The Broadway, Southend-on-sea, SS1 3JS
- Station Road, Southend-on-sea, SS1 3JT
- Acacia Drive, Southend-on-sea, SS1 3JU
- Burges Close, Southend-on-sea, SS1 3JW
- Acacia Drive, Southend-on-sea, SS1 3JX
- Station Road, Southend-on-sea, SS1 3JY
- Station Road, Southend-on-sea, SS1 3JZ
- Marcus Avenue, Southend-on-sea, SS1 3LA
- Marcus Avenue, Southend-on-sea, SS1 3LB
- Fermoy Road, Southend-on-sea, SS1 3LD
- Marcus Avenue, Southend-on-sea, SS1 3LE
- Marcus Gardens, Southend-on-sea, SS1 3LF
- Marcus Chase, Southend-on-sea, SS1 3LG
- St. James Avenue, Southend-on-sea, SS1 3LH
- St. James Avenue, Southend-on-sea, SS1 3LJ
- St. James Avenue, Southend-on-sea, SS1 3LL
- St. James Avenue, Southend-on-sea, SS1 3LN
- Marcus Avenue, Southend-on-sea, SS1 3LQ
- St. James Avenue, Southend-on-sea, SS1 3LR
- Station Road, Southend-on-sea, SS1 3LU
- St. James Avenue, Southend-on-sea, SS1 3LW
- Maplin Way, Southend-on-sea, SS1 3LX
- Maplin Way, Southend-on-sea, SS1 3NA
- Maplin Way, Southend-on-sea, SS1 3NB
- Maplin Way, Southend-on-sea, SS1 3ND
- Maplin Way, Southend-on-sea, SS1 3NE
- Maplin Way, Southend-on-sea, SS1 3NF
- Johnstone Road, Southend-on-sea, SS1 3NG
- Dungannon Drive, Southend-on-sea, SS1 3NH
- Dungannon Chase, Southend-on-sea, SS1 3NJ
- Maplin Way, Southend-on-sea, SS1 3NL
- Maplin Way, Southend-on-sea, SS1 3NN
- Thorpe Bay Gardens, Southend-on-sea, SS1 3NP
- Dungannon Drive, Southend-on-sea, SS1 3NQ
- Thorpe Bay Gardens, Southend-on-sea, SS1 3NR
- Thorpe Bay Gardens, Southend-on-sea, SS1 3NS
- Maplin Way North, Southend-on-sea, SS1 3NT
- Maplin Way North, Southend-on-sea, SS1 3NU
- Thorpe Bay Gardens, Southend-on-sea, SS1 3NW
- Maplin Way North, Southend-on-sea, SS1 3NX
- Maplin Way North, Southend-on-sea, SS1 3NY
- Maplin Way North, Southend-on-sea, SS1 3NZ
- Barnstaple Road, Southend-on-sea, SS1 3PA
- Barnstaple Road, Southend-on-sea, SS1 3PB
- Barnstaple Close, Southend-on-sea, SS1 3PD
- Daines Way, Southend-on-sea, SS1 3PE
- Daines Way, Southend-on-sea, SS1 3PF
- Daines Close, Southend-on-sea, SS1 3PG
- Burleigh Square, Southend-on-sea, SS1 3PH
- Branscombe Gardens, Southend-on-sea, SS1 3PJ
- Barnstaple Road, Southend-on-sea, SS1 3PL
- Barnstaple Road, Southend-on-sea, SS1 3PN
- Barnstaple Road, Southend-on-sea, SS1 3PP
- Daines Way, Southend-on-sea, SS1 3PQ
- Samuels Drive, Southend-on-sea, SS1 3PR
- Burlescoombe Road, Southend-on-sea, SS1 3PS
- Burlescoombe Road, Southend-on-sea, SS1 3PT
- Ladram Close, Southend-on-sea, SS1 3PU
- Barnstaple Road, Southend-on-sea, SS1 3PW
- Ladram Road, Southend-on-sea, SS1 3PX
- Ladram Road, Southend-on-sea, SS1 3PY
- Ladram Way, Southend-on-sea, SS1 3PZ
- Moat End, Southend-on-sea, SS1 3QA
- Burlescoombe Road, Southend-on-sea, SS1 3QB
- Branscombe Square, Southend-on-sea, SS1 3QD
- Burlescoombe Road, Southend-on-sea, SS1 3QE
- Burlescoombe Leas, Southend-on-sea, SS1 3QF
- Burlescoombe Road, Southend-on-sea, SS1 3QG
- Barnstaple Road, Southend-on-sea, SS1 3QH
- Broadclyst Gardens, Southend-on-sea, SS1 3QP
- Burlescoombe Close, Southend-on-sea, SS1 3QQ
- Broadclyst Close, Southend-on-sea, SS1 3QR
- Broadclyst Gardens, Southend-on-sea, SS1 3QS
- Broadclyst Gardens, Southend-on-sea, SS1 3QT
- Broadclyst Gardens, Southend-on-sea, SS1 3QU
- Chadacre Road, Southend-on-sea, SS1 3QX
- Broadclyst Gardens, Southend-on-sea, SS1 3QY
- Cherrybrook, Southend-on-sea, SS1 3QZ
- Plymtree, Southend-on-sea, SS1 3RA
- Shoebury Road, Southend-on-sea, SS1 3RG
- Shoebury Road, Southend-on-sea, SS1 3RJ
- Shoebury Road, Southend-on-sea, SS1 3RL
- Little Thorpe, Southend-on-sea, SS1 3RN
- Shoebury Road, Southend-on-sea, SS1 3RP
- Shoebury Road, Southend-on-sea, SS1 3RQ
- Armitage Road, Southend-on-sea, SS1 3RR
- Shoebury Road, Southend-on-sea, SS1 3RS
- Little Thorpe, Southend-on-sea, SS1 3RW
- Bournes Green Chase, Southend-on-sea, SS1 3SB
- Thorpe Hall Avenue, Southend-on-sea, SS1 3SD
- Thorpe Hall Avenue, Southend-on-sea, SS1 3SE
- Thorpe Hall Avenue, Southend-on-sea, SS1 3SF
- Thorpe Hall Avenue, Southend-on-sea, SS1 3SG
- The Willows, Southend-on-sea, SS1 3SH
- Thorpe Hall Avenue, Southend-on-sea, SS1 3SJ
- Willingale Way, Southend-on-sea, SS1 3SL
- Willingale Way, Southend-on-sea, SS1 3SN
- Pleshey Close, Southend-on-sea, SS1 3SP
- Thorpe Hall Close, Southend-on-sea, SS1 3SQ
- Navestock Gardens, Southend-on-sea, SS1 3SR
- Fortescue Chase, Southend-on-sea, SS1 3SS
- Wansfell Gardens, Southend-on-sea, SS1 3ST
- Waterhale, Southend-on-sea, SS1 3SU
- Wansfell Gardens, Southend-on-sea, SS1 3SW
- Willingale Way, Southend-on-sea, SS1 3SX
- Coptfold Close, Southend-on-sea, SS1 3SY
- Bovinger Way, Southend-on-sea, SS1 3SZ
- Willingale Way, Southend-on-sea, SS1 3TA
- Hayes Barton, Southend-on-sea, SS1 3TS
- Shoebury Road, Southend-on-sea, SS1 3TT
- Cheldon Barton, Southend-on-sea, SS1 3TX
- Challacombe, Southend-on-sea, SS1 3TY
- The Campions, Southend-on-sea, SS1 3TZ
- Station Road, Southend-on-sea, SS1 3UE