alexandria,_indiana | ispartof | indiana <tsp> indiana | capital | indianapolis <tsp> indiana | country | united_states <tsp> madison_county,_indiana | countyseat | anderson,_indiana <tsp> alexandria,_indiana | ispartof | madison_county,_indiana <sep> alexandria is a city in monroe township, madison county, indiana, united states it is about 48 miles (77 km) northeast of indianapolis according to the 2020 census, its population was 5,149, nearly unchanged from 2010 
the us town of alexandria is part of madison county. where the county seat is anderson. indiana has the capital indianapolis and is the state where alexandria is located.alexandria is a city in madison county, indiana, united states