| Reference |
post code |
location 1 |
location 2 |
| PE23 119 | PE23 4AG | KEAL COTES POST OFFICE | |
| PE23 84 | PE23 4BA | HALL CORNER | EAST KEAL |
| PE23 127 | PE23 4BA | EAST KEAL POST OFFICE | |
| PE23 85 | PE23 4BJ | MAIN ROAD-HALL LANE | WEST KEAL |
| PE23 88 | PE23 4BP | HAGNABY | |
| PE23 86 | PE23 4BX | CROSS ROADS | EAST KIRKBY |
| PE23 128 | PE23 4BZ | EAST KIRKBY | |
| PE23 95 | PE23 4DT | RAITHBY | |
| PE23 122 | PE23 4EB | MAVIS ENDERBY | |
| PE23 123 | PE23 4ES | OLD BOLINGBROOKE POST OFFICE | |
| PE23 104 | PE23 4HF | OLD BOLINGBROOKE CHURCH | |
| PE23 105 | PE23 4HT | HAREBY | |
| PE23 103 | PE23 4HX | ASGARBY | |
| PE23 106 | PE23 4JD | LUSBY VILLAGE | |
| PE23 81 | PE23 4JS | ASWARDBY | |
| PE23 97 | PE23 4LA | SAUSTHORPE | |
| PE23 129 | PE23 4LP | HAGWORTHINGHAM VILLAGE | |
| PE23 42 | PE23 4NA | HAGWORTHINGHAM POST OFFICE | |
| PE23 108 | PE23 4NE | HARRINGTON | |
| PE23 107 | PE23 4NP | BAG ENDERBY | |
| PE23 109 | PE23 4NS | SOMERSBY | |
| PE23 131 | PE23 4PF | PARTNEY POST OFFICE | |
| PE23 83 | PE23 4PG | PARTNEY VILLAGE | |
| PE23 82 | PE23 4PN | DALBY VILLAGE | |
| PE23 94 | PE23 4PU | LANGTON | |
| PE23 124 | PE23 4QE | SKENDLEBY | |
| PE23 126 | PE23 5AE | TOYNTON ALL SAINTS POST OFFICE | |
| PE23 87 | PE23 5AT | KIRKBY FENSIDE | |
| PE23 93 | PE23 5AT | TOYNTON ST PETER | |
| PE23 99 | PE23 5BD | HALTON FENSIDE | |
| PE23 102 | PE23 5BG | THORPE BANK | LITTLE STEEPING |
| PE23 100 | PE23 5BH | STATION ROAD | LITTLE STEEPING |
| PE23 130 | PE23 5BL | LITTLE STEEPING POST OFFICE | |
| PE23 120 | PE23 5DD | TOYNTON FENSIDE | |
| PE23 121 | PE23 5DD | FENSIDE CORNER | TOYNTON |
| PE23 75 | PE23 5DW | ASHBY ROAD | SPILSBY |
| PE23 135 | PE23 5ET | WOODLANDS AVENUE | SPILSBY |
| PE23 118 | PE23 5HJ | WINSTON ROAD | ERESBY |
| PE23 76 | PE23 5HN | ANCASTER AVENUE | |
| PE23 80 | PE23 5JR | THE TERRACE | SPILSBY |
| PE23 77 | PE23 5LE | HALTON ROAD | SPILSBY |
| PE23 134 | PE23 5LH | PARTNEY ROAD | SPILSBY |
| PE23 201 | PE23 5LH | SPILSBY POST OFFICE | POST OFFICE LANE |
| PE23 78 | PE23 5LS | HUNDLEBY POST OFFICE | |
| PE23 79 | PE23 5LZ | MAIN ROAD | HUNDLEBY |
| PE23 137 | PE23 5NH | RAITHBY ROAD | HUNDLEBY |
| PE23 92 | PE23 5NN | SPELLOW PARK | |
| PE23 132 | PE23 5NT | HALTON HOLGATE | |
| PE23 101 | PE23 5PB | STATION ROAD | HALTON HOLGATE |
| PE23 125 | PE23 5PT | GREAT STEEPING | |
| PE23 89 | PE23 5PW | HALTON BRIDGE | SPILSBY |
| PE23 60 | PE23 5PX | STATION ROAD | FIRSBY |
| PE23 90 | PE23 5QJ | FIRSBY VILLAGE | |
| PE23 110 | PE23 5RG | ASHBY | |
| PE23 114 | PE23 5RW | MAIN ROAD | SCREMBY |
| PE23 111 | PE23 5RX | CANDLESBY VILLAGE | |
| PE23 113 | PE23 5SS | GUNBY | |
| PE23 117 | PE23 5TA | WELTON POST OFFICE | |
Map boundaries are based on data from