About this dataset

Context

The dataset tabulates the Nassau population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Nassau across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2023, the population of Nassau was 1,081, a 0.37% decrease year-by-year from 2022. Previously, in 2022, Nassau population was 1,085, a decline of 1% compared to a population of 1,096 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Nassau decreased by 74. In this period, the peak population was 1,155 in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2023

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2023)
• Population: The population for the specific year for the Nassau is shown in this column.
• Year on Year Change: This column displays the change in Nassau population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Nassau Population by Year. You can refer the same here

Graph and download economic data for Resident Population in Nassau County, NY (NYNASS9POP) from 1970 to 2024 about Nassau County, NY; New York; NY; residents; population; and USA.

Graph and download economic data for Population Estimate, Total (5-year estimate) in Nassau County, NY (B03002001E036059) from 2009 to 2023 about Nassau County, NY; New York; estimate; NY; 5-year; persons; population; and USA.

About this dataset

Context

The dataset tabulates the Nassau population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Nassau across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2022, the population of Nassau was 1,088, a 0.82% decrease year-by-year from 2021. Previously, in 2021, Nassau population was 1,097, a decline of 0.45% compared to a population of 1,102 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Nassau decreased by 67. In this period, the peak population was 1,155 in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2022

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2022)
• Population: The population for the specific year for the Nassau is shown in this column.
• Year on Year Change: This column displays the change in Nassau population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Nassau Population by Year. You can refer the same here

Comprehensive demographic dataset for Nassau, NY, US including population statistics, household income, housing units, education levels, employment data, and transportation with year-over-year changes.

Resident Population in Nassau County, NY was 1392.43800 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Nassau County, NY reached a record high of 1428.83800 in January of 1970 and a record low of 1286.90500 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Nassau County, NY - last updated from the United States Federal Reserve on November of 2025.

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Nassau County, FL (B03002003E012089) from 2009 to 2023 about Nassau County, FL; Jacksonville; white; non-hispanic; estimate; FL; 5-year; persons; population; and USA.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Nassau County, FL was 46.30000 Years of Age in January of 2023, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Nassau County, FL reached a record high of 46.30000 in January of 2022 and a record low of 41.60000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Nassau County, FL - last updated from the United States Federal Reserve on November of 2025.

Graph and download economic data for Estimate, Median Age by Sex, Total Population (5-year estimate) in Nassau County, FL (B01002001E012089) from 2009 to 2023 about Nassau County, FL; Jacksonville; age; FL; 5-year; median; and USA.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, NY was 256452.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, NY reached a record high of 256452.00000 in January of 2023 and a record low of 164701.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, NY - last updated from the United States Federal Reserve on October of 2025.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, FL was 5052.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, FL reached a record high of 5052.00000 in January of 2023 and a record low of 1737.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Nassau County, FL - last updated from the United States Federal Reserve on December of 2025.

About this dataset

Context

The dataset tabulates the Nassau population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Nassau. The dataset can be utilized to understand the population distribution of Nassau by age. For example, using this dataset, we can identify the largest age group in Nassau.

Key observations

The largest age group in Nassau, NY was for the group of age 15-19 years with a population of 124 (10.84%), according to the 2021 American Community Survey. At the same time, the smallest age group in Nassau, NY was the 80-84 years with a population of 8 (0.70%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group in consideration
• Population: The population for the specific age group in the Nassau is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of Nassau total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Nassau Population by Age. You can refer the same here

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Some Other Race Alone (5-year estimate) in Nassau County, FL (B03002008E012089) from 2009 to 2023 about Nassau County, FL; Jacksonville; non-hispanic; estimate; FL; 5-year; persons; population; and USA.

Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Nassau County, FL was 79754.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Nassau County, FL reached a record high of 79754.00000 in January of 2023 and a record low of 59077.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Nassau County, FL - last updated from the United States Federal Reserve on November of 2025.

About this dataset

Context

The dataset tabulates the East Nassau population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of East Nassau across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2022, the population of East Nassau was 516, a 0.77% decrease year-by-year from 2021. Previously, in 2021, East Nassau population was 520, a decline of 0.19% compared to a population of 521 in 2020. Over the last 20 plus years, between 2000 and 2022, population of East Nassau decreased by 64. In this period, the peak population was 588 in the year 2010. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2022

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2022)
• Population: The population for the specific year for the East Nassau is shown in this column.
• Year on Year Change: This column displays the change in East Nassau population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for East Nassau Population by Year. You can refer the same here

Graph and download economic data for Percent of Population Below the Poverty Level (5-year estimate) in Nassau County, NY (S1701ACS036059) from 2012 to 2023 about Nassau County, NY; New York; NY; poverty; percent; 5-year; population; and USA.

Estimate of People of All Ages in Poverty in Nassau County, FL was 9524.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Estimate of People of All Ages in Poverty in Nassau County, FL reached a record high of 10071.00000 in January of 2013 and a record low of 4048.00000 in January of 1989. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate of People of All Ages in Poverty in Nassau County, FL - last updated from the United States Federal Reserve on November of 2025.

Graph and download economic data for Estimate of People Age 0-17 in Poverty in Nassau County, NY (PEU18NY36059A647NCEN) from 1989 to 2023 about Nassau County, NY; under 18 years; New York; NY; child; poverty; persons; and USA.

About this dataset

Context

The dataset tabulates the Nassau population by year. The dataset can be utilized to understand the population trend of Nassau.

Content

The dataset constitues the following datasets

• Nassau, NY Population Dataset: Yearly Figures, Population Change, and Percent Change Analysis

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

About this dataset

Context

The dataset tabulates the population of Nassau by gender across 18 age groups. It lists the male and female population in each age group along with the gender ratio for Nassau. The dataset can be utilized to understand the population distribution of Nassau by gender and age. For example, using this dataset, we can identify the largest age group for both Men and Women in Nassau. Additionally, it can be used to see how the gender ratio changes from birth to senior most age group and male to female ratio across each age group for Nassau.

Key observations

Largest age group (population): Male # 15-19 years (87) | Female # 40-44 years (66). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Scope of gender :

Please note that American Community Survey asks a question about the respondents current sex, but not about gender, sexual orientation, or sex at birth. The question is intended to capture data for biological sex, not gender. Respondents are supposed to respond with the answer as either of Male or Female. Our research and this dataset mirrors the data reported as Male and Female for gender distribution analysis.

Variables / Data Columns

• Age Group: This column displays the age group for the Nassau population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Nassau is shown in the following column.
• Population (Female): The female population in the Nassau is shown in the following column.
• Gender Ratio: Also known as the sex ratio, this column displays the number of males per 100 females in Nassau for each age group.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Nassau Population by Gender. You can refer the same here