Newcastle, Utah Demographics & Population 2026
During the 2020–2024 ACS period, Newcastle, Utah had a total population of 367, the 254th largest community in Utah, with a median household income of $86,739, which is 9% lower than the state average. The poverty rate is 0.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Newcastle Quick Facts
How Newcastle Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 231 | 367 | +58.9% |
| Median household income | $82,670 | $86,739 | +4.9% |
| Median home value | $212,500 | $280,400 | +32.0% |
How Newcastle Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Newcastle Rankings in Utah
Explore Utah Rankings
Other Cities in Iron County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Cedar City | 38,524 | $63,589 | 18.9% | $377,000 |
| Enoch | 8,144 | $80,750 | 1.5% | $386,200 |
| Parowan | 3,165 | $53,145 | 12.3% | $343,400 |
| Paragonah | 647 | $64,271 | 8.2% | $244,800 |
| Kanarraville | 257 | N/A | 2.7% | $356,300 |
| Summit | 104 | N/A | 0.0% | N/A |
| Brian Head | 74 | $75,125 | 14.9% | $468,200 |
Cities Similar to Newcastle
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| La Sal | 373 | N/A | $86,600 | 10.3% | 0.0% |
| Manila | 371 | $78,000 | $244,300 | 19.3% | 2.7% |
| New Harmony | 393 | $85,298 | $579,900 | 42.7% | 24.7% |
| Plymouth | 342 | $85,625 | $380,400 | 15.6% | 3.5% |
| Mayfield | 384 | $80,000 | $316,000 | 19.3% | 15.1% |
A note before these figures: with a population of 367, Newcastle's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Newcastle is a small community located in Utah, within Iron County. The total population is 367. It ranks as the 254th most populous out of 326 Census-designated places in Utah.
Age Demographics
The median age in Newcastle is 48.9 years. This is 53% higher than the state median of 32.0 years.
Economy, Income & Housing
The median household income in Newcastle is $86,739. This is 9% lower than the state median of $95,166. It is also 7% higher than the national median of $80,734. The ACS records no residents below the poverty line in Newcastle. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Newcastle, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $280,400. Housing costs are 43% lower than the state median of $489,400. The home-value-to-income ratio is 3.2x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 42% higher than the state average of 70.3%.
Race & Ethnicity
Newcastle has a predominantly White (non-Hispanic) population, comprising 94.8% of all residents.
Education
35.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% lower than the state rate of 37.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Newcastle, Utah is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Utah state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 326 Census-designated places in Utah. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Newcastle, Utah?
Newcastle, Utah has a population of 367 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Newcastle, UT?
The median household income in Newcastle is $86,739, which is 7% higher than the national median of $80,734.
What is the poverty rate in Newcastle, UT?
The ACS sample for Newcastle recorded no residents below the federal poverty line. Because the community is small, this indicates that the survey did not capture poverty here rather than that no poverty exists — the estimate carries a wide margin of error.
What is the racial makeup of Newcastle, Utah?
Newcastle's population is 94.8% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Newcastle, UT?
The median home value in Newcastle is $280,400. The home-value-to-income ratio is 3.2x.
How educated is Newcastle, Utah?
35.0% of adults (25+) in Newcastle hold a bachelor's degree or higher, and 6.5% hold a graduate or professional degree.