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.

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.

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

About this dataset

Context

The dataset tabulates the population of Loudoun County by gender across 18 age groups. It lists the male and female population in each age group along with the gender ratio for Loudoun County. The dataset can be utilized to understand the population distribution of Loudoun County by gender and age. For example, using this dataset, we can identify the largest age group for both Men and Women in Loudoun County. 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 Loudoun County.

Key observations

Largest age group (population): Male # 40-44 years (19,728) | Female # 40-44 years (19,390). 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 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 is shown in the following column.
• Population (Female): The female population in the Loudoun County 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 Loudoun County 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 Loudoun County Population by Gender. You can refer the same here

Graph and download economic data for Estimate of Median Household Income for Loudoun County, VA (MHIVA51107A052NCEN) from 1989 to 2023 about Loudoun County, VA; Washington; VA; households; median; income; and USA.

About this dataset

Context

The dataset presents the distribution of median household income among distinct age brackets of householders in Loudoun County. Based on the latest 2019-2023 5-Year Estimates from the American Community Survey, it displays how income varies among householders of different ages in Loudoun County. It showcases how household incomes typically rise as the head of the household gets older. The dataset can be utilized to gain insights into age-based household income trends and explore the variations in incomes across households.

Key observations: Insights from 2023

In terms of income distribution across age cohorts, in Loudoun County, householders within the 45 to 64 years age group have the highest median household income at $209,901, followed by those in the 25 to 44 years age group with an income of $179,502. Meanwhile householders within the 65 years and over age group report the second lowest median household income of $105,024. Notably, householders within the under 25 years age group, had the lowest median household income at $75,139.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. All incomes have been adjusting for inflation and are presented in 2023-inflation-adjusted dollars.

Age groups classifications include:

• Under 25 years
• 25 to 44 years
• 45 to 64 years
• 65 years and over

Variables / Data Columns

• Age Of The Head Of Household: This column presents the age of the head of household
• Median Household Income: Median household income, in 2023 inflation-adjusted dollars for the specific 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 Loudoun County median household income 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 October of 2025.

Graph and download economic data for Percent of Population Below the Poverty Level (5-year estimate) in Loudoun County, VA (S1701ACS051107) from 2012 to 2023 about Loudoun County, VA; Washington; VA; poverty; percent; 5-year; population; 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 (ACS) 2019-2023 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 32.9.
• 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 15.4.
• Total dependency ratio for Loudoun County, VA is 48.2.
• Potential support ratio, which is the number of youth (working age population) per elderly, for Loudoun County, VA is 6.5.

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

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

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino (5-year estimate) in Loudoun County, VA (B03002002E051107) from 2009 to 2023 about Loudoun County, VA; Washington; non-hispanic; estimate; VA; 5-year; persons; population; and USA.

Graph and download economic data for Employed Persons in Loudoun County, VA (LAUCN511070000000005) from Jan 1990 to Aug 2025 about Loudoun County, VA; Washington; VA; persons; household survey; employment; and USA.

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 October 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.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, stairways, and winter trails.

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 September of 2025.

U.S. Census Bureau QuickFacts statistics for Loudoun County, Virginia. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Feature Names Relationship File contains a record for each feature name and any attributes associated with it. Each feature name can be linked to the corresponding edges that make up that feature in the All Lines shapefile (edges.shp), where applicable to the corresponding address range or ranges in the Address Range Relationship File (addr.dbf), or to both files. Although this file includes feature names for all linear features, not just road features, the primary purpose of this relationship file is to identify all street names associated with each address range. An edge can have several feature names; an address range located on an edge can be associated with one or any combination of the available feature names (an address range can be linked to multiple feature names). The address range is identified by the address range identifier (ARID) attribute, which can be used to link to the Address Range Relationship File (addr.dbf). The linear feature is identified by the linear feature identifier (LINEARID) attribute, which can be used to relate the address range back to the name attributes of the feature in the Feature Names Relationship File or to the feature record in the Primary Roads, Primary and Secondary Roads, or All Roads shapefiles. The edge to which a feature name applies can be determined by linking the feature name record to the All Lines shapefile (edges.shp) using the permanent edge identifier (TLID) attribute. The address range identifier(s) (ARID) for a specific linear feature can be found by using the linear feature identifier (LINEARID) from the Feature Names Relationship File through the Address Range/Feature Name Relationship File (addrfn.dbf).

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Excluding Some Other Race, and Three or More Races (5-year estimate) in Loudoun County, VA (B03002011E051107) from 2009 to 2023 about Loudoun County, VA; non-hispanic; Washington; estimate; VA; 5-year; persons; population; 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 to 44 years years with a population of 39,118 (9.16%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Loudoun County, VA was the 85 years and over years with a population of 5,095 (1.19%). 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

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

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.