Theodore (2021 population: 315) is a village in the Canadian province of Saskatchewan within the Rural Municipality of Insinger No. 275 and Census Division No. 9. Theodore is located on Saskatchewan Highway 16, the Yellowhead Highway, in southeastern Saskatchewan. The Theodore post office first opened in 1893 at the legal land description of Sec.1, Twp.28, R.7, W2. Theodore is located between Yorkton and Foam Lake.

With the end of passenger rail service in 1974, the Theodore railway station was adopted for use as a senior citizens' centre; it also serves as the home for the Theodore Historical Museum.

Theodore incorporated as a village on July 5, 1907.

Historical census populations – Theodore, Saskatchewan

Year Pop. ±% 1921 287 —     1931 371 +29.3% 1941 335 −9.7% 1951 403 +20.3% 1956 418 +3.7% 1961 455 +8.9%	Year Pop. ±% 1966 489 +7.5% 1971 434 −11.2% 1976 472 +8.8% 1981 473 +0.2% 1986 472 −0.2% 1991 473 +0.2%	Year Pop. ±% 1996 434 −8.2% 2001 381 −12.2% 2006 339 −11.0% 2011 345 +1.8% 2016 323 −6.4% 2021 315 −2.5%
Source: Statistics Canada via Saskatchewan Bureau of Statistics

In the 2021 Census of Population conducted by Statistics Canada, Theodore had a population of 315 living in 151 of its 173 total private dwellings, a change of -2.5% from its 2016 population of 323. With a land area of 1.51 km (0.58 sq mi), it had a population density of 208.6/km (540.3/sq mi) in 2021.

In the 2016 Census of Population, the Village of Theodore recorded a population of 323 living in 167 of its 211 total private dwellings, a -6.8% change from its 2011 population of 345. With a land area of 1.73 km (0.67 sq mi), it had a population density of 186.7/km (483.6/sq mi) in 2016.

• List of communities in Saskatchewan
• Theodore Reservoir

Media related to Theodore, Saskatchewan at Wikimedia Commons