Mongaup Valley, New York Demographics & Population 2026
During the 2020–2024 ACS period, Mongaup Valley, New York had a total population of 235, the 1194th largest community in New York, with a median household income of $115,111, which is 34% higher 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
Key Takeaways
- Household income is 34% above the state average — one of the wealthiest communities in New York.
Mongaup Valley Quick Facts
How Mongaup Valley 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 | 269 | 235 | -12.6% |
| Median household income | $113,192 | $115,111 | +1.7% |
How Mongaup Valley 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
Moderate diversity with one or two groups making up the majority.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Mongaup Valley Rankings in New York
Explore New York Rankings
Other Cities in Sullivan County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Monticello | 7,279 | $50,583 | 29.7% | $172,000 |
| Liberty | 5,142 | $64,913 | 14.6% | $181,900 |
| Rock Hill | 2,546 | $112,344 | 5.4% | $402,700 |
| South Fallsburg | 1,914 | $44,706 | 38.4% | $375,000 |
| Fallsburg | 1,865 | $56,056 | 90.3% | N/A |
| Loch Sheldrake | 1,308 | $27,214 | 57.5% | N/A |
| Wurtsboro | 1,243 | $79,000 | 10.8% | $234,700 |
| Wurtsboro Hills | 1,179 | $78,514 | 11.5% | $183,100 |
| Hurleyville | 1,061 | $85,846 | 11.1% | $353,300 |
| Woodridge | 955 | $61,298 | 20.3% | $207,300 |
Cities Similar to Mongaup Valley
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Grahamsville | 249 | N/A | $316,700 | 31.8% | 2.8% |
| Copake | 222 | $115,938 | $210,500 | 18.4% | 0.0% |
| Blodgett Mills | 212 | N/A | $135,000 | 7.8% | 11.3% |
| Duane Lake | 236 | $142,150 | $404,300 | 60.3% | 11.0% |
| Delanson | 263 | $113,750 | $264,500 | 30.3% | 3.5% |
A note before these figures: with a population of 235, Mongaup Valley'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
Mongaup Valley is a small community located in New York, within Sullivan County. The total population is 235. It ranks as the 1194th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Mongaup Valley is 54.3 years. This is 36% higher than the state median of 39.8 years.
Economy, Income & Housing
The median household income in Mongaup Valley is $115,111. This is 34% higher than the state median of $85,974. It is also 43% higher than the national median of $80,734. The ACS records no residents below the poverty line in Mongaup Valley. 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 Mongaup Valley, which reflects the size of the sample rather than a labor market without joblessness. 61.6% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 54.4%.
Race & Ethnicity
The largest racial or ethnic group in Mongaup Valley is White (non-Hispanic), making up 72.8% of the population. Black or African American residents account for 27.2%. The Black or African American population is significantly higher than the state average (27.2% vs 13.4%).
Education
27.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.7%. Notably, 23.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mongaup Valley, New York 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 New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. 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 Mongaup Valley, New York?
Mongaup Valley, New York has a population of 235 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mongaup Valley, NY?
The median household income in Mongaup Valley is $115,111, which is 43% higher than the national median of $80,734.
What is the poverty rate in Mongaup Valley, NY?
The ACS sample for Mongaup Valley 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 Mongaup Valley, New York?
Mongaup Valley's population is 72.8% White, 27.2% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Mongaup Valley, NY?
The Census Bureau does not publish a reliable median home value estimate for Mongaup Valley — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Mongaup Valley, New York?
27.9% of adults (25+) in Mongaup Valley hold a bachelor's degree or higher, and 23.7% hold a graduate or professional degree.