There is not a specific age for her, but if I had to guess I'd say she is in her early to mid 20s.
Luci Christian voices Hungary .
Natalia, or Belarus's , human age is 19 years on in Hetalia.
19
England is 23 years old
Hetalia - Axis Powers , Hetalia - World Series , Hetalia - The Beautiful World .
Each character is as old as the country that they represent.
Axis Powers Hetalia.
She doesn't have an official age but her fan age is I think about 14
Hetalia fans are nicknamed "Hetalians".
All the facts in Hetalia are 100% true/
Hetalia was created by Hidekazu Himaruya.
Hetalia World Series .