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Lewis and Clark County, Montana, features several ZIP Code Tabulation Areas (ZCTAs) created by the Census Bureau. These ZCTAs align Census data with ZIP code boundaries, providing key demographic data that helps depict regional characteristics in population, income, and racial composition. They are approximate areas based on USPS ZIP codes, ensuring that Census data accurately reflects the geography of postal regions.
The ZIP codes in Lewis and Clark County range from 59601 in Helena, the state’s capital, to 59647 in the surrounding rural areas. Covering cities and towns like Helena, East Helena, and Lincoln, the ZCTAs include both densely populated urban zones and more sparsely populated rural regions. Among these, Helena's ZIP codes show the highest population, while smaller areas like Wolf Creek and Augusta reflect lower population densities.
There are several post offices and P.O. boxes throughout the county, supporting both residential and remote areas. In addition to population density, data shows variations in demographic factors like income and race. For example, Helena’s ZCTAs report a diverse population mix and slightly higher income averages, while rural ZIP codes reflect Montana’s broader demographic trends.
Gender distribution across ZCTAs is fairly balanced, with some areas leaning towards a slightly higher male or female population. Census data also provides insights into income disparities within these ZCTAs, revealing that Helena residents tend to have higher incomes compared to those in more rural ZIP codes. This rich demographic breakdown helps communities, planners, and businesses understand local needs across Lewis and Clark County.
Source: Census
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