Map of BT31 9FG postcode

General information

Postcode	BT31 9FG
Post Town	Castlewellan
Businesses	C & P FLANAGAN CONTRACTS LIMITED

Geography

	Latitude	54.251511
	Longitude	-5.941191
	Easting	143371
	Northing	491153
	Grid reference	SB433911
	UTM reference	30U 308396 6015498
	what3words	catapult.cases.character
	FixPhrase	crumb lividly snowfall unmapped
	Plus code	9C6P7325+JG
	Altitude	90 metres (294 feet)
	Sunrise (today)	8:41
	Sunset (today)	16:23
	Distance away
	Distance to sea	5.3 KMs (3.3 miles)

Administrative areas

Ward	Castlewellan	N08001011
District	Newry, Mourne and Down	N09000010
Constituency (2024)	South Down	N05000015
MP	Chris Hazzard	Sinn Féin
Police force	PSNI
NUTS/ITL 3	Newry, Mourne and Down
NUTS/ITL 2	Northern Ireland
NUTS/ITL 1	Northern Ireland
Country	Northern Ireland	N92000002

Data

Date introduced	September 2021
Last updated	December 2025
User type	Small (addresses receive less than 25 items of mail per day)
Quality	Within the building of the matched address closest to the postcode mean

Demographics

Index of Multiple Deprivation (2017-2020)	455 / 890 Most deprivedLeast deprived
Census output area (2021)	N20003334
Census output area (2011)	N00002670
Lower layer super output area (2021)	Slieve_Croob_G	N21000749
Lower layer super output area (2011)	Castlewellan 2	95NN06S2
Travel to work area	Newry and Banbridge	N12000009

Contains OS data © Crown copyright and database right 2026
Contains Royal Mail data © Royal Mail copyright and database right 2026
Contains National Statistics data © Crown copyright and database rights 2026
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license