Telegu:
Santa Clara County [CA] 14,015
Middlesex County [NJ] 12,520
Alameda County [CA] 6,690
Fairfax County [VA] 6,210
Dallas County [TX] 5,400
King County [WA] 5,380
Cook County [IL] 5,275
Los Angeles County [CA] 4,620
Oakland County [MI] 4,495
Loudoun County [VA] 4,420
Maricopa County [AZ] 4,385
Collin County [TX] 3,945
Harris County [TX] 3,615
Middlesex County [MA] 3,075
San Diego County [CA] 2,820
Fulton County [GA] 2,770
DuPage County [IL] 2,755
Source:
https://namecensus.com/languages/Telugu.html
Malayalam:
Cook County [IL] 8,530
Nassau County [NY] 6,990
Fort Bend County [TX] 6,740
Dallas County [TX] 6,720
Philadelphia County [PA] 6,050
Queens County [NY] 4,025
Westchester County [NY] 3,960
Harris County [TX] 3,545
Santa Clara County [CA] 2,970
Rockland County [NY] 2,690
Los Angeles County [CA] 2,635
DuPage County [IL] 2,580
Source:
https://namecensus.com/languages/Malayalam.html
Tamil:
Santa Clara County [CA] 15,540
Middlesex County [NJ] 8,275
Alameda County [CA] 6,800
King County [WA] 5,020
Los Angeles County [CA] 4,875
Cook County [IL] 4,220
Middlesex County [MA] 3,820
Oakland County [MI] 3,225
Collin County [TX] 3,205
Fairfax County [VA] 3,140
Maricopa County [AZ] 3,060
Harris County [TX] 2,830
Orange County [CA] 2,760
Fulton County [GA] 2,490
Montgomery County [MD] 2,490
Dallas County [TX] 2,430
Contra Costa County [CA] 2,235
Wake County [NC] 2,200
Source:
https://namecensus.com/languages/Tamil.html