In urban areas which are not zoned or posted as provided in § 32-25-7, the maximum lawful speed shall be twenty-five miles per hour. A violation of this section is a Class 2 misdemeanor.
S.D. Codified Laws § 32-25-12
Speed limit in unposted urban areas--Violation as misdemeanor
Source: SDC 1939, § 44.0303 (5) to (7); SL 1941, ch 187, § 1; SL 1955, ch 168; SL 1959, ch 251, § 1; SDC Supp 1960, § 44.0303 (6) (a); SL 1970, ch 175, § 9; SL 1972, ch 182; SL …
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.