Swayfield is a village and civil parish in the South Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 316. It is situated just over 3 mi east from the A1 road, 9 mi south-east from Grantham and 10 mi north from Stamford. It has approximately 138 houses.
Swayfield had a population in 2011 that was more than 312, but less than 318.
It's definitely correct because the population was 316, which is more than 312 and less than 318. It's difficult because the statement requires multiple comparisons to analyze, which can be confusing.