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%
2016952,6980.91%
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
White652,170
Black or African American206,290
Asian36,553
Two or More Races26,260
Some Other Race18,512
American Indian and Alaska Native3,482
Native Hawaiian and Other Pacific Islander465

Data via US Census (2017 ACS 5-Year Survey): Table B03002

Delaware Population Pyramid 2018

10,00020,00030,00040,000 Male Population10,00020,00030,00040,000 Female Population80757065605550454035302520151050

Data via US Census (2017 ACS 5-Year Survey): Table S0101

Delaware Median Age

39.8


Total

38.2


Male

41.4


Female

Delaware Adults

There are 739,679 adults, (160,565 of whom are seniors) in Delaware.

Delaware Age Dependency

63

Age Dependency Ratio

27.7

Old Age Dependency Ratio

35.2

Child Dependency Ratio

Delaware Sex Ratio

Female

486,856

51.59%

Male

456,876

48.41%

Delaware Households and Families

Delaware Renter vs Owner Occupied by Household Type

Data via US Census (2017 ACS 5-Year Survey): Table S1101

Delaware Household Types

Type Owner Renter
Married85.1%14.9%
All71.3%28.7%
Male63.8%36.2%
Non Family59.1%40.9%
Female53.6%46.4%

71.3%

Rate of Home Ownership

Delaware Households by Type

Type Count Average Size Owned
All352,3572.6171.3
Married171,9903.1885.1
Non Family116,8521.2959.1
Female47,6423.4653.6
Male15,8733.5563.8

3.17

Average Family Size

2.61

Average Household Size

6%

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 Grade23,4163.59%
9th to 12th Grade46,2287.10%
High School Graduate203,13531.18%
Some College125,96419.33%
Associates Degree51,0287.83%
Bachelors Degree117,47818.03%
Graduate Degree84,29112.94%

Delaware Educational Attainment by Race

Name Total High School Bachelors
White444,117409,117146,932
Black130,363114,49429,001
Hispanic44,31628,5136,390
Asian25,03222,93317,382
Other Race10,4206,4991,487
Multiple Races8,7747,7222,292
Native American2,4631,848487
Islander26620037

The highest rate of high school graduation is among white people with a rate of 92.12%.

The highest rate of bachelors degrees is among white people with a rate of 69.44%.

Delaware Earnings by Educational Attainment

Name Average Male Female
Overall$40,954$46,174$35,995
Less Than High School$25,448$28,331$19,876
High School Grad$31,716$37,390$26,292
Some College$37,545$43,763$32,873
Bachelors Degree$53,958$62,267$48,206
Graduate Degree$69,685$80,926$62,290

$40,954

Average Earnings

$46,174

Average Male

$35,995

Average Female

Delaware Language

Delaware Language by Age

Delaware Language

87.15% of Delaware residents speak only English, while 12.85% speak other languages. The largest non-English language is Spanish, which is spoken by 6.85% of the population.

Delaware Poverty

Delaware Poverty by Race

Name Total In Poverty Poverty Rate
White581,57847,3018.13%
Black197,09937,03918.79%
Hispanic82,79020,12724.31%
Multiple25,6025,54921.67%
Other18,1515,13028.26%
Asian36,0262,9838.28%
Native3,28257517.52%
Islander447316.94%

12.12%

Overall Poverty Rate

10.78%

Male Poverty Rate

13.38%

Female Poverty Rate

Poverty in Delaware

The race most likely to be in poverty in Delaware is Other, with 28.26% below the poverty level.

The race least likely to be in poverty in Delaware is Islander, with 6.94% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.97%. Among those working part-time, it was 14.85%, and for those that did not work, the poverty rate was 18.89%.

Delaware Poverty Rate by Education

Name Poverty
Less Than High School21.84%
High School12.91%
Some College8.07%
Bachelors or Greater3.44%

Delaware Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed29.69%
Male Unemployed23.02%
Female Employed6.53%
Male Employed4.20%

Delaware Income

Delaware Income by Household Type

Name Median Mean
Households$63,036$84,146
Families$76,346$97,654
Married Families$90,580$113,394
Non Families$38,209$53,227

Delaware Marital Status

Delaware Marital Status

Marriage Rates

47.7%

Overall Marriage Rate

50.1%

Male Marriage Rate

45.5%

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


Data via US Census (2017 ACS 5-Year Survey): Table S1201

Delaware Veterans

Delaware Veterans by War

66,854

Number of Veterans

61,253

Male Veterans

5,601

Female Veterans

Name Veterans
Vietnam25,276
First Gulf War12,799
Second Gulf War9,639
Korea6,061
World War II3,021

Delaware Veterans by Age

Name Veterans
65 to 7419,170
75+15,390
35 to 5414,856
55 to 6412,923
18 to 344,515

Delaware Veterans by Race

Name Veterans % of Total
White52,1759.91%
Black12,6188.22%
Hispanic2,4704.59%
2 or More1,0728.95%
Asian3541.23%
Other3042.38%
Indian2829.77%
Hawaiian4914.58%

Delaware Veterans by Education

5.83%

Veteran Poverty Rate

24.46%

Veteran Disability Rate

Delaware Employment Status

Delaware Employment by Age

62.2%

Labor Force Participation

57.9%

Employment Rate

6.4%

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)