Delaware Population 2018

971,180

By gauging the last official population estimate along with accounting for recent growth rates, we estimate that the population of Delaware is 971,180 in 2018.

At the time of the 2010 Census, the population of Delaware was recorded at 897,934, which represented a 14.6% rise on the 2000 figure of 783,600. An estimate in 2015 claims that the population within the state had risen to 945,934, and this would make Delaware the 45th largest state in the USA as far as population. Based on growth rates from the last year, Delaware is the 14th fastest growing state at a rate of 1.05%.

Delaware Population Density and Area

In many respects, the state of Delaware is quite tiny, and in terms of surface area, it is the second smallest state in the United States, ahead of only Rhode Island.

Delaware’s territory equates to just 2,490 square miles (6,452 square kilometers) of area managed by the state, and for every square mile of land, there is an average of 460.8 people. This makes Delaware's population density the 6th highest in the US.

The largest city in Delaware is Wilmington, with a population of 71,146 people. The largest county is New Castle, which is one of only three counties in the state. See more below for interactive graphs and charts concerning changes in population over time.

Delaware Demographics

Age/Sex, Race, Religion

The median age is 39.6 years of age, with a slight gender gap of 51.6% females, and 48.4% males in the state.

The racial diversity in Delware stands at 69.2% Caucasians, 21.7% African American, 3.7% Asian, 2.8% two or more races, 2.2% other race, and .4% Native of America/Alaska.

In religious terms, Delaware's population is split, with 69% associating with Christianity, 6% non-Christian faiths, and 23% unaffiliated individuals.

Delaware Boundary and Statehood History

Delaware was one of the 13 original States, and has essentially maintained its currently known boundaries since the Colonial times. Census coverage has included the entirety of Delaware from 1790 on.

Delaware Population Chart

Delaware’s Population History

Like most states on the eastern edge of the United States, Delaware has enjoyed comparatively high and steady population statistics since the early settlers arrived in the 18th century. In 1790, the early census showed the numbers within the state to be 59,096, and ten years later at the start of the next century, that figure had grown by just 8.8% to 64,273.

Similar increases were experienced throughout the 1800s, and by 1860 the population of Delaware went beyond 100,000 for the first time. From this point, the percentage rise in census on census figures regularly exceeded 10% with one notable spike coming in 1960 when a rise of over 40% from 1950’s figures took the population to 446,292.

Delaware Population Projections

Delaware has enjoyed steady, if unspectacular, growth since it first came into existence, and there is no reason to suggest that this won’t continue. The question for many observers is how close the numbers can get to the one million mark by the time of the next Census in 2020. Estimates put the population of Delaware in 2020 right around 1 million based on current growth rates.

By projecting the current growth rates out to 2020, we end up with an estimate of 995,764 for 2020, just shy of the 1 million total.

Population Data via US Census

Delaware Growth Rate

Delaware Population Rank

Year Pop % Change
2020989,6620.94%
2019980,4210.95%
2018971,1800.96%
2017961,9390.97%
2016952,698Infinity%
2016934,695-1.00%
2015944,1071.00%
2014934,8051.05%
2013925,1140.90%
2012916,8680.99%
2011907,8840.91%
2010899,7121.39%
2000783,6001.64%
1990666,1681.15%
1980594,3380.81%
1970548,1042.08%
1960446,2923.44%
1950318,0851.79%
1940266,5051.12%
1930238,3800.67%
1920223,0030.98%
1910202,3220.91%
1900184,7350.92%
1890168,4931.40%
1880146,6081.61%
1870125,0151.09%
1860112,2162.06%
185091,5321.60%
184078,0850.17%
183076,7480.54%
182072,7490.01%
181072,6741.24%
180064,2730.84%
179059,0962.67%
178045,3852.49%
177035,4960.66%
176033,2501.48%
175028,7043.75%
174019,8708.04%
17309,1705.47%
17205,3853.98%
17103,6453.97%
17002,4705.24%
16901,4823.96%
16801,0053.68%
16707002.63%
166054011.31%
16501850.00%

Delaware Facts

Delaware Population in 2018Source: By Tim Kiser (User:Malepheasant) [CC BY-SA 2.5 (https://creativecommons.org/licenses/by-sa/2.5)], from Wikimedia Commons

Delaware Population Density by County

New Castle County

  • Population559,793
  • Density1313.19 per sq km
  • Growth Since 20103.89%
  • State Rank1
  • % of State58.19%

Delaware Population Growth Rate by County

Growth by County in Delaware

When evaluating populations by county, Delaware is quite easy to evaluate as the state has just three counties. Unlike many states in the United States, which have a balance of declining and increasing populations, all three counties in Delaware -- New Castle, Kent, and Sussex -- posted population growths between the 2010 Census and estimates taken in 2015.

Sussex County, the southernmost county, posted the highest growth of 8.96%. This was followed by the central county of Kent, with an increase of 6.47%, and northernmost county New Castle, with a recorded population growth of 3.32%.

Population by Race

Race Population
White647,002
Black or African American203,027
Asian34,428
Two or More Races25,831
Some Other Race20,452
American Indian and Alaska Native3,494
Native Hawaiian and Other Pacific Islander461

Race Data via US Census (2016 ACS 5-Year Survey)

Delaware Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Delaware Median Age

39.6


Total

38


Male

41.1


Female

Delaware Adults

There are 730,931 adults, (154,225 of which are seniors) in Delaware.

Delaware Age Dependency

62.1

Age Dependency Ratio

26.7

Old Age Dependency Ratio

35.4

Child Dependency Ratio

Delaware Sex Ratio

Female

482,279

51.60%

Male

452,416

48.40%

Delaware Households and Families

Delaware Renter vs Owner Occupied by Household Type

Delaware Household Types

Type Owner Renter
Married84.9%15.1%
All70.9%29.1%
Male66.8%33.2%
Non Family58.8%41.2%
Female52.8%47.2%

70.9%

Rate of Home Ownership

Delaware Households by Type

Type Count Average Size Owned
All348,0512.6170.9
Married167,9793.1884.9
Non Family115,4821.2958.8
Female48,3883.4852.8
Male16,2023.5566.8

3.17

Average Family Size

2.61

Average Household Size

6.1%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Delaware Households

Delaware Education

Delaware Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade24,1143.76%
9th to 12th Grade47,6327.43%
High School Graduate199,46131.12%
Some College124,79619.47%
Associates Degree49,5917.74%
Bachelors Degree115,77018.06%
Graduate Degree79,55112.41%

Delaware Educational Attainment by Race

Name Total High School Bachelors
White440,058403,466142,846
Black127,036110,27727,799
Hispanic42,85227,3756,454
Asian23,47221,41016,230
Other Race11,3697,2731,782
Multiple Races8,3867,3382,223
Native American2,3741,835452
Islander28521033

The highest rate of high school graduation is among white people with a rate of 91.68%.

The highest rate of bachelors degrees is among white people with a rate of 69.15%.

Delaware Earnings by Educational Attainment

Name Average Male Female
Overall$39,956$45,009$35,059
Less Than High School$23,459$27,397$18,017
High School Grad$30,916$36,606$25,473
Some College$37,378$43,656$32,721
Bachelors Degree$51,849$60,670$45,941
Graduate Degree$66,916$78,618$59,836

$39,956

Average Earnings

$45,009

Average Male

$35,059

Average Female

Delaware Language

Delaware Language by Age

Delaware Language

87.29% of Delaware residents speak only English, while 12.71% speak other languages. The largest non-English language is Spanish, which is spoken by 6.86% of the population.

Delaware Poverty

Delaware Poverty by Race

Name Total In Poverty Poverty Rate
White579,55346,9378.10%
Black194,21435,69718.38%
Hispanic80,92321,01925.97%
Other20,0555,32726.56%
Multiple25,1015,21220.76%
Asian33,9682,5507.51%
Native3,25341412.73%
Islander440317.05%

12.04%

Overall Poverty Rate

10.70%

Male Poverty Rate

13.29%

Female Poverty Rate

Poverty in Delaware

The race most likely to be in poverty in Delaware is Other, with 26.56% below the poverty level.

The race least likely to be in poverty in Delaware is Islander, with 7.05% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.93%. Among those working part-time, it was 15.01%, and for those that did not work, the poverty rate was 18.36%.

Delaware Poverty Rate by Education

Name Poverty
Less Than High School22.54%
High School11.53%
Some College7.97%
Bachelors or Greater3.55%

Delaware Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed31.13%
Male Unemployed22.17%
Female Employed6.46%
Male Employed4.36%

Delaware Income

Delaware Income by Household Type

Name Median Mean
Households$61,017$80,432
Families$73,831$93,114
Married Families$87,936$108,292
Non Families$37,383$51,260

Delaware Marital Status

Delaware Marital Status

Marriage Rates

47.4%

Overall Marriage Rate

49.7%

Male Marriage Rate

45.2%

Female Marriage Rate

Delaware Married by Age and Sex

Delaware Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 55To64.

Delaware Marital Status by Race

Delaware Veterans

Delaware Veterans by War

68,777

Number of Veterans

62,879

Male Veterans

5,898

Female Veterans

Name Veterans
Vietnam25,481
First Gulf War12,360
Second Gulf War9,464
Korea6,847
World War II3,594

Delaware Veterans by Age

Name Veterans
65 to 7418,762
75+15,913
35 to 5415,534
55 to 6413,760
18 to 344,808

Delaware Veterans by Race

Name Veterans % of Total
White54,37910.42%
Black12,1148.07%
Hispanic2,4204.63%
2 or More1,0909.38%
Other4523.20%
Indian34912.36%
Asian3411.26%
Hawaiian5215.16%

Delaware Veterans by Education

5.29%

Veteran Poverty Rate

24.43%

Veteran Disability Rate

Delaware Employment Status

Delaware Employment by Age

63.1%

Labor Force Participation

58.2%

Employment Rate

7.1%

Unemployment Rate

Delaware Employment by Race

Delaware Employment by Education

Delaware Nativity

Delaware Citizenship Status

Data Sources
  1. Delaware Census State Data Center
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)