Which state ballot measures had the widest vote margins in California?

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Question: Which state ballot measures had the widest vote margins in California?

Answer: The 10 statewide ballot measures in California between 1910 and 2022 with the widest vote margins saw at least a 71% difference in vote share for the winning and losing sides. The ballot measure with the widest margin during that period was Proposition 12 in 1972, which was approved with a vote margin of 89.73% approving to 10.27% rejecting. The margin in absolute votes was 6,288,157. The following table shows the vote margins for the widest 10 ballot measure elections in California:

Widest vote margins for California statewide ballot measures, 1910-2022
Measure	Year	Yes votes		No votes		Vote margin	Outcome
		#	%	#	%
Proposition 12	1972	7,100,443	89.73%	812,286	10.27%	79.47%	a
Proposition 11	1954	2,967,383	89.72%	339,938	10.28%	79.44%	a
Proposition 10	1972	7,088,300	89.42%	838,366	10.58%	78.85%	a
Proposition 9	1966	5,034,365	89.27%	605,007	10.73%	78.54%	a
Proposition 1	1944	2,385,571	87.72%	333,892	12.28%	75.44%	a
Proposition 179	1994	3,975,403	87.71%	557,001	12.29%	75.42%	a
Proposition 1	1919	196,084	87.51%	27,992	12.49%	75.02%	a
Proposition 195	1996	4,847,966	85.82%	800,857	14.18%	71.65%	a
Proposition 196	1996	4,873,194	85.80%	806,481	14.20%	71.60%	a
Proposition 101	1988	1,226,735	13.27%	8,020,659	86.73%	-73.47%	d

Learn more:

Click here to find out which California ballot measures had the closest vote margins.

Click here for a list of California ballot measures by year.

See also

• Ballot Measures overview
• List of California ballot measures