Population
According to the 2025 Claritas PopFacts population estimates, Washoe County includes 27 ZIP code tabulation areas( ZCTAs) and serves a population of approximately 502,226 residents. Figure 1 shows the population size in each ZIP code, with the darkest blue representing the ZIP codes with the largest populations. The Appendix provides a table of population estimates for each ZIP code. The two most populated ZIP codes within Washoe County are 89436( Sparks) and 89502( Reno), with populations of 49,419 and 46,279, respectively.
FIGURE 1: WASHOE COUNTY POPULATION BY ZIP CODE
16