A census of the city was taken in 1855, and the number of inhabitants at that time can be obtained only from the Secretary of State.

Very truly yours,
A. S. Cady.

State of New-York, Secretary’s Office,
Albany, February 24, 1857.

H. R. Helper, Esq.,
Dear Sir:—

Yours of the 17th February, in regard to the population of the city of New York, is before me. According to the census of

1855thepopulationwas 629,810
1850""" 515,547
1845""" 371,223
1840""" 312,710
1835""" 268,089
1830""" 197,112

As to the population now, you have the same facilities of judging that we have from the above table.

Very truly yours,
A. N. Wakefield, Chief Clerk.

Mayor’s Office, City Hall,
Baltimore, December 26, 1856.