Section 20. Special population census: population data

1. Any county on
  behalf of all cities, towns and villages therein or  any  county,  city,
  town, or village on its own behalf is hereby authorized and empowered to
  contract  with  the  United  States  bureau of the census to supervise a
  special  population  census  for  purposes  of  computation   of   state
  assistance  payable  pursuant to section fifty-four of the state finance
  law in any year and the cost of such a census shall be an expense of the
  county, city, town, or village respectively. Such county, city, town, or
  village shall give written notice to the state board  of  real  property
  services  that  such  a  contract  has been entered into with the United
  States bureau of the census within thirty days thereof.
    2. A county, city, town, or village may request from the United States
  bureau of the census and pay such bureau for the cost  of  special  data
  for possible use in apportioning its local legislative body.