Saint-Agil is a former commune in the Loir-et-Cher department of central France. On 1 January 2018, it was merged into the new commune of Couëtron-au-Perche.

Historical population

Year Pop. ±% 1793 655 —     1806 619 −5.5% 1821 673 +8.7% 1831 671 −0.3% 1841 680 +1.3% 1851 675 −0.7% 1861 675 +0.0% 1872 642 −4.9% 1881 600 −6.5% 1891 566 −5.7% 1901 646 +14.1% 1911 623 −3.6%

Year Pop. ±% 1921 585 −6.1% 1931 528 −9.7% 1946 527 −0.2% 1954 492 −6.6% 1962 403 −18.1% 1968 379 −6.0% 1975 340 −10.3% 1982 282 −17.1% 1990 274 −2.8% 1999 258 −5.8% 2005 284 +10.1% 2014 270 −4.9%

• Communes of the Loir-et-Cher department