An election to the Carmarthen Rural District Council in Wales was held in April 1931.
[1] A large number of candidates had been returned unopposed with only seven wards being contested.
[2] Initially, no nominations were received for the Llandawke and Llansadurnen ward, nor the Llanddowror ward.
As had been the pattern in recent elections the vast majority of candidates were Independents and the majority were returned unopposed.
Thomas Thomas, one of the few Labour members, had served as chairman of the council in 1930-31, but was defeated at Llanarthey having a few weeks earlier unsuccessfully stood for election to Carmarthenshire County Council.