LAST NAME · 2020 CENSUS
Mountcastle
Mountcastle is the 41,517th most common last name in the United States. In the 2020 Census, 565 people carried it — about 0.2 of every 100,000 people. Most people named Mountcastle are White.
WHO CARRIES THIS NAME · 2020
White84.2%
Black5.3%
Hispanic4.6%
Multiracial4.4%
Asian American1.1%
Native American0.4%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#28,585
0
2000
#36,463
579
2010
#36,154
620
2020
#41,517
565