Newcastle, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Newcastle, Washington is 12,945 as of the 2023 American Community Survey, making it the 101st-largest city in Washington. The median household income is $162,646, the median home value is $1,128,200, and the median age is 37.4.
The population has grown 25.7% since 2010 (10,398 → 13,072).
12,945
Population
2919
People / sq mi
$162,646
Median Income
$1,128,200
Median Home Value
Newcastle covers 4.4 sq mi of land at 2919 people per square mile.
About Newcastle, WA
Newcastle is a city in Washington with a population of 12,945. It ranks #101 among cities in Washington by population. The median age is 37.4, younger than the national median. The population is 50.3% male and 49.7% female.
The median household income in Newcastle is $162,646, above the US median of $74,580. 1.9% of residents live below the federal poverty level. Home values sit at a median of $1,128,200, with monthly rent averaging $2,314. The homeownership rate of 63.6% is close to the national rate of 64.8%.
Educational attainment in Newcastle reflects 71.1% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 26.8% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 27.8 minutes each way.
Newcastle city Population History (2010-2024)
The city of Newcastle city had a population of 10,398 in 2010 and 13,072 in 2024, a 25.7% growth over 14 years. The peak was 13,145 in 2020. Average annual growth rate: 1.67%.
13,072
Population (2024)
10,398
Population (2010)
13,145
Peak (2020)
1.67%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,398 |
| 2011 | 10,541 |
| 2012 | 10,785 |
| 2013 | 11,025 |
| 2014 | 11,182 |
| 2015 | 11,356 |
| 2016 | 11,583 |
| 2017 | 11,748 |
| 2018 | 11,780 |
| 2019 | 12,292 |
| 2020 | 13,145 |
| 2021 | 12,972 |
| 2022 | 12,887 |
| 2023 | 12,877 |
| 2024 | 13,072 |
Race & Ethnicity
| White | 43.3% |
| Black or African American | 1.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.9% |
| Two or More Races | 0.0% |
Economy & Income
$162,646
Median Household Income
$93,095
Per Capita Income
1.9%
Poverty Rate
3.4%
Unemployment Rate
Housing
$1,128,200
Median Home Value
$2,314
Median Rent
63.6%
Owner-Occupied
Education
98.3%
High School+
71.1%
Bachelor's+
Commute
2.6%
Drive Alone
61.4%
Public Transit
26.8%
Work From Home
27.8 min
Avg Commute
Community Profile
31.1%
Foreign Born
60.5%
Non-English at Home
2.7%
Veterans
8.5%
With Disability
97.3%
Health Insurance
97.6%
Internet Access
Employment by Industry
| Finance, Insurance & Real Estate | 21.3% |
| Professional, Scientific & Management | 17.6% |
| Manufacturing | 10.6% |
| Information | 9.1% |
| Transportation & Warehousing | 6.2% |
| Education, Health Care & Social Services | 5.4% |
| Arts, Entertainment & Food Services | 3.4% |
| Retail Trade | 3.2% |
| Construction | 2.8% |
| Public Administration | 0.8% |
| Agriculture & Mining | 0.3% |
Largest cities in Washington
Largest counties in Washington
Part of Washington
Metro areas in Washington
City rankings
Frequently Asked Questions
Newcastle, Washington has a population of 12,945 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 101st-largest city in Washington.
The median household income in Newcastle, Washington is $162,646, with 1.9% of residents living below the federal poverty level.
The median home value in Newcastle, Washington is $1,128,200, with median monthly rent at $2,314 and a homeownership rate of 63.6%.
The median age in Newcastle, Washington is 37.4 years. The population is 50.3% male and 49.7% female.
The population has grown 25.7% since 2010 (10,398 → 13,072).
More from Washington
Population 741,440
Population 229,228
Population 220,482
Population 192,696
Population 151,199
Full rankings of Washington cities by population
Statewide data for Washington
Population, race, income, age, and trends across Washington
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.