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

About this dataset

Context

The dataset tabulates the Loudoun County 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 Loudoun County 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 Loudoun County was 436,347, a 0.82% increase year-by-year from 2022. Previously, in 2022, Loudoun County population was 432,792, an increase of 0.94% compared to a population of 428,764 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Loudoun County increased by 262,450. In this period, the peak population was 436,347 in the year 2023. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth. 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 Loudoun County is shown in this column.
• Year on Year Change: This column displays the change in Loudoun County 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 Loudoun County Population by Year. You can refer the same here

Graph and download economic data for Resident Population in Loudoun County, VA (VALOUD5POP) from 1970 to 2024 about Loudoun County, VA; Washington; VA; residents; population; and USA.

Use this application to view the pattern of concentrations of people by race and Hispanic or Latino ethnicity. Data are provided at the U.S. Census block group level, one of the smallest Census geographies, to provide a detailed picture of these patterns. The data is sourced from the U.S Census Bureau, 2020 Census Redistricting Data (Public Law 94-171) Summary File. Definitions: Definitions of the Census Bureau’s categories are provided below. This interactive map shows patterns for all categories except American Indian or Alaska Native and Native Hawaiian or Other Pacific Islander. The total population countywide for these two categories is small (1,582 and 263 respectively). The Census Bureau uses the following race categories:Population by RaceWhite – A person having origins in any of the original peoples of Europe, the Middle East, or North Africa.Black or African American – A person having origins in any of the Black racial groups of Africa.American Indian or Alaska Native – A person having origins in any of the original peoples of North and South America (including Central America) and who maintains tribal affiliation or community attachment.Asian – A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam.Native Hawaiian or Other Pacific Islander – A person having origins in any of the original peoples of Hawaii, Guam, Samoa, or other Pacific Islands.Some Other Race - this category is chosen by people who do not identify with any of the categories listed above. People can identify with more than one race. These people are included in the Two or More Races Hispanic or Latino PopulationThe Hispanic/Latino population is an ethnic group. Hispanic/Latino people may be of any race.Other layers provided in this tool included the Loudoun County Census block groups, towns and Dulles airport, and the Loudoun County 2021 aerial imagery.

About this dataset

Context

The dataset tabulates the Loudoun County Hispanic or Latino population. It includes the distribution of the Hispanic or Latino population, of Loudoun County, by their ancestries, as identified by the Census Bureau. The dataset can be utilized to understand the origin of the Hispanic or Latino population of Loudoun County.

Key observations

Among the Hispanic population in Loudoun County, regardless of the race, the largest group is of Other Hispanic or Latino origin, with a population of 44,813 (74.11% of the total Hispanic population).

Content

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

Origin for Hispanic or Latino population include:

• Mexican
• Puerto Rican
• Cuban
• Other Hispanic or Latino

Variables / Data Columns

• Origin: This column displays the origin for Hispanic or Latino population for the Loudoun County
• Population: The population of the specific origin for Hispanic or Latino population in the Loudoun County is shown in this column.
• % of Total Hispanic Population: This column displays the percentage distribution of each Hispanic origin as a proportion of Loudoun County total Hispanic or Latino 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 Loudoun County Population by Race & Ethnicity. You can refer the same here

About this dataset

Context

The dataset tabulates the Loudoun County population by gender and age. The dataset can be utilized to understand the gender distribution and demographics of Loudoun County.

Content

The dataset constitues the following two datasets across these two themes

• Loudoun County, VA Population Breakdown by Gender
• Loudoun County, VA Population Breakdown by Gender and Age

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/.

Graph and download economic data for Population Estimate, Total (5-year estimate) in Loudoun County, VA (B03002001E051107) from 2009 to 2023 about Loudoun County, VA; Washington; VA; estimate; 5-year; persons; population; and USA.

Graph and download economic data for Employed Persons in Loudoun County, VA (LAUCN511070000000005A) from 1990 to 2024 about Loudoun County, VA; Washington; VA; household survey; persons; employment; and USA.

About this dataset

Context

The dataset tabulates the data for the Loudoun County, VA population pyramid, which represents the Loudoun County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

• Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Loudoun County, VA, is 34.3.
• Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Loudoun County, VA, is 14.0.
• Total dependency ratio for Loudoun County, VA is 48.3.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Loudoun County, VA is 7.1.

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 for the Loudoun County population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the Loudoun County for the selected age group is shown in the following column.
• Population (Female): The female population in the Loudoun County for the selected age group is shown in the following column.
• Total Population: The total population of the Loudoun County for the selected age group is shown in the following column.

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 Loudoun County Population by Age. You can refer the same here

Resident Population in Loudoun County, VA was 443.38000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Loudoun County, VA reached a record high of 443.38000 in January of 2024 and a record low of 37.15000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Loudoun County, VA - last updated from the United States Federal Reserve on December of 2025.

Graph and download economic data for Estimate, Median Age by Sex, Total Population (5-year estimate) in Loudoun County, VA (B01002001E051107) from 2009 to 2023 about Loudoun County, VA; age; Washington; VA; 5-year; median; and USA.

About this dataset

Context

The dataset tabulates the Loudoun County 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 Loudoun County. The dataset can be utilized to understand the population distribution of Loudoun County by age. For example, using this dataset, we can identify the largest age group in Loudoun County.

Key observations

The largest age group in Loudoun County, VA was for the group of age 40-44 years with a population of 36,573 (8.84%), according to the 2021 American Community Survey. At the same time, the smallest age group in Loudoun County, VA was the 85+ years with a population of 4,442 (1.07%). 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 Loudoun County is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of Loudoun County 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 Loudoun County Population by Age. You can refer the same here

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Loudoun County, VA was 60466.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Loudoun County, VA reached a record high of 60466.00000 in January of 2023 and a record low of 28026.00000 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 Loudoun County, VA - last updated from the United States Federal Reserve on November of 2025.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Loudoun County, VA was 37.80000 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 Loudoun County, VA reached a record high of 37.80000 in January of 2023 and a record low of 34.20000 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 Loudoun County, VA - last updated from the United States Federal Reserve on November of 2025.

Demographics, population, housing, income, education, schools, and geography for ZIP Code 20175 (Leesburg, VA). Interactive charts load automatically as you scroll for improved performance.

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Some Other Race Alone (5-year estimate) in Loudoun County, VA (B03002008E051107) from 2009 to 2023 about Loudoun County, VA; Washington; non-hispanic; VA; estimate; 5-year; persons; population; and USA.

Demographics, population, housing, income, education, schools, and geography for ZIP Code 20148 (Ashburn, VA). Interactive charts load automatically as you scroll for improved performance.

Demographics, population, housing, income, education, schools, and geography for ZIP Code 20101 (Dulles, VA). Interactive charts load automatically as you scroll for improved performance.

Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Loudoun County, VA was 89615.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Loudoun County, VA reached a record high of 89615.00000 in January of 2023 and a record low of 33779.00000 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, Asian Alone (5-year estimate) in Loudoun County, VA - last updated from the United States Federal Reserve on November of 2025.

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