LAST NAME · 2020 CENSUS
Ildefonso
Ildefonso is the 35,603rd most common last name in the United States. In the 2020 Census, 680 people carried it — about 0.2 of every 100,000 people. Most people named Ildefonso are Hispanic.
WHO CARRIES THIS NAME · 2020
Hispanic71.9%
Asian American20.0%
White7.2%
Multiracial0.6%
Black0.3%
Native American0.0%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#28,856
0
2000
#43,058
473
2010
#35,812
627
2020
#35,603
680