There are 9 seats on Ampfield Parish Council.
The elected term for the of parish councillors is four years. The elections for Ampfield Parish Council are managed by Test Valley Borough Council https://www.testvalley.gov.uk/aboutyourcouncil/localdemocracy/elections. Councillors must be qualified for election (and there are some disqualifications too) - see Electoral Commission https://www.electoralcommission.org.uk/i-am-a/candidate-or-agent/parish-council-elections-england. This means that your councillors are registered electors for the parish, live in (or within 3 miles), work in, or have property in the parish.
Find out more about the work of local councillors on the website of the National Association of Local Councils here https://www.nalc.gov.uk/our-work/local-elections#what-do-local-councils-and-councillors-do