# Population — Loudoun, VA (persons)

Population — Loudoun, VA (persons) was 443,380 persons in 2024, up 1.4% from 2023.
That is the highest reading since the series began in 1969.
Over the past ten years it has ranged from 362,280 persons (2014) to 443,380 persons (2024), averaging 409,527 persons.

- Source agency: U.S. Bureau of Economic Analysis (Regional Economic Accounts)
- Makrognosis code: `US-VA-51107.POP.A.NSA`
- Frequency: annual
- Units: persons
- Coverage: 1969-01-01 to 2024-01-01 (56 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/population-loudoun-va

## Recent data

| Period | Value |
|---|---:|
| 2024 | 443,380 persons |
| 2023 | 437,164 persons |
| 2022 | 432,897 persons |
| 2021 | 428,827 persons |
| 2020 | 422,723 persons |
| 2019 | 414,764 persons |
| 2018 | 405,868 persons |
| 2017 | 397,107 persons |
| 2016 | 385,677 persons |
| 2015 | 374,115 persons |
| 2014 | 362,280 persons |
| 2013 | 349,963 persons |
| 2012 | 337,876 persons |
| 2011 | 326,342 persons |
| 2010 | 315,483 persons |
| 2009 | 303,661 persons |
| 2008 | 292,570 persons |
| 2007 | 279,704 persons |
| 2006 | 267,194 persons |
| 2005 | 254,909 persons |
| 2004 | 238,299 persons |
| 2003 | 220,366 persons |
| 2002 | 203,543 persons |
| 2001 | 189,910 persons |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US-VA-51107.POP.A.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US-VA-51107.POP.A.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```