For a city, nonprofit corporation, and/or county-established library receiving public monies for public library service, the population served by a public library is the population in the most recent decennial census or official population estimate of the United States Department of Commerce, Bureau of the Census, if available. If a library does not report receiving public monies for public library service, that library will be assigned no population. Calculations will be based upon the following.

1. (1) In counties with one or more public libraries that spend only city and private funds, each library is credited with serving the population of the city or cities from which it receives funds or with which it has a contract.
2. (2) In counties with only one public library and that library spends county funds, the library is credited with serving the entire county population.
3. (3) In counties with more than one public library that spends both city and county funds, the libraries that spend city and county funds are credited with serving their city population plus a percentage of the population living outside the cities. This percentage is the ratio of each city's population to the total of all the populations of cities with public libraries within the county.
4. (4) In counties with a library established by the county commissioners court and that spends no city funds or an incorporated library that spends no city funds, and one or more city libraries that spend county funds, the city libraries that spend county and city funds are credited with serving their city populations plus a percentage of the county population living outside the cities. The percentage is the ratio of each city's population to the county population. The county library or incorporated library that spends county funds and no city funds serves all county residents not served by a city library.
5. (5) In counties with one library that spends county funds and one or more public libraries that do not spend county funds, the library that spends county funds is credited with serving the county population less the populations of cities with public libraries.
6. (6) In counties with more than one library that spends county funds and no city funds, the county population living outside cities with public libraries shall be prorated among the libraries in the same ratio as the county funds are expended.
7. (7) When school districts contract with one or more nonprofit corporations, cities, or counties for public library services as part of their students' educational program, the State Library shall estimate the total population living within the school district.
8. (8) Libraries that enter into agreements or contracts with counties, cities, or school districts to provide public library services will be assigned population under this section whether or not there is an exchange of funds.
9. (9) In libraries where the population of a federal or state eleemosynary or correctional institution or military installation exceeds 10% of the entire population of the area served by a public library, the residential or base population shall be subtracted from the population served by that library if these persons are served by an institutional or base library.
10. (10) When a library believes that the acceptance of county funding would result in the assignment of an unrealistic population figure, it may request in writing that the Library Systems Act Advisory Board approve an exception to the population served methodology. The board will use its discretion to devise a method by which data from the Bureau of the Census will be used to calculate the assignment of population served.

Source Note:The provisions of this §1.71 adopted to be effective September 1, 1977, 2 TexReg 1925; amended to be effective September 1, 1979, 4 TexReg 2675; amended to be effective March 26, 1980, 5 TexReg 906; amended to be effective December 9, 1980, 5 TexReg 4766; amended to be effective July 22, 1983, 8 TexReg 2607; amended to be effective April 30, 1985, 10 TexReg 1228; amended to be effective July 20, 1987, 12 TexReg 2178; amended to be effective August 4, 1988, 13 TexReg 3633.