RIOS
U.S. surname frequency from Census Bureau surname files.
- Census year
- 2010
- National rank
- #237
- Count
- 127,794
- Share of population
- 0.0433% of U.S. population (2010 Census estimate)
- Rank change vs prior Census
- +48
- Rarity
- Uncommon (45.61)
- Percentile
- 0.146
Meaning: Etymology and surname meaning are not included unless verified from a citable source.