by Kristen Carney
Updated: February 9, 2026
The richest county in Utah is Summit County with an average household income of $210,870 as of 2024 and 42,970 people as of 2024 according to the most current Census data available (citation).
| Rank | County | Population | Average Income | Median Income |
|---|---|---|---|---|
| 1 | Summit County | 42,970 | $210,870 | $138,114 |
| 2 | Wasatch County | 36,642 | $167,205 | $117,608 |
| 3 | Morgan County | 12,802 | $158,661 | $130,929 |
| 4 | Davis County | 370,924 | $132,463 | $110,884 |
| 5 | Utah County | 705,400 | $127,591 | $100,671 |
| 6 | Salt Lake County | 1,196,523 | $124,982 | $97,494 |
| 7 | Tooele County | 79,347 | $124,358 | $106,587 |
| 8 | Juab County | 12,586 | $109,235 | $101,786 |
| 9 | Weber County | 269,648 | $109,068 | $90,005 |
| 10 | Washington County | 196,431 | $107,780 | $80,632 |
| 11 | Cache County | 140,046 | $105,827 | $81,665 |
| 12 | Box Elder County | 61,246 | $99,908 | $84,550 |
| 13 | Duchesne County | 20,185 | $97,751 | $78,445 |
| 14 | Kane County | 8,170 | $95,803 | $77,092 |
| 15 | Uintah County | 37,056 | $94,276 | $73,746 |
| 16 | Grand County | 9,754 | $90,104 | $67,106 |
| 17 | Wayne County | 2,584 | $89,814 | $76,607 |
| 18 | Rich County | 2,631 | $89,694 | $79,009 |
| 19 | Iron County | 62,252 | $89,495 | $66,247 |
| 20 | Sevier County | 22,085 | $88,761 | $74,884 |
We usually suggest using median income data – either instead of or in addition to – average income data as a true indicator of wealth. If you haven’t thought about median versus average since your last standardized test, you aren’t alone. Here’s what they are:

Now let’s say you had the following simplified set of income data.
Household 1: $30,000
Household 2: $50,000
Household 3: $1,000,000
The average income for this set is $360,000. The outlier data point ($1,000,000) skews the average WAY up. Conversely, the average income would be skewed WAY down if someone had an income of $500. The median income for the same data set is $50,000. Outlier data doesn’t skew the median.
So most business owners should use the median income as a true indicator of wealth, because it provides a more accurate representation of a typical income, especially in areas with significant income disparity.
If your target market is high-income households, the average income may be more relevant. This is because the average income can highlight the presence of a higher concentration of wealthy individuals, which is beneficial for luxury goods and services marketing. We’re using average income on this page because using the Census’s highest reported median value of $250,001 could result in multiple ties for the richest geography.
The Census' American Community Survey uses $250,000+ as a jam value for median income estimates to protect privacy, ensure data consistency, and simplify reporting. A "jam value" in survey data refers to a placeholder or default value used when actual data points are unavailable, incomplete, or exceed certain thresholds. We represent this jam value as $250,001 to make it easy for you to sort.
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United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2024. U.S. Census Bureau, Population Division. Web. May 2025. http://www.census.gov/.
United States Census Bureau. B01001 SEX BY AGE, 2024 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 29 January 2026. http://www.census.gov/.
United States Census Bureau. B19013 Median Household Income, 2024 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 29 January 2026. http://www.census.gov/.
United States Census Bureau. “DP03 SELECTED ECONOMIC CHARACTERISTICS.” 2024 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 29 January 2026. http://www.census.gov/.
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