Hartford, IA

City in Warren County, IA, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

760

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

39.1

years ∙ half population younger than 39.1, half older

Diversity Index

16%

chance two random people differ in race and ethnicity

Nativity

0.9%

foreign-born population

99.1%Native

0.9% Foreign-born

Geographic Context

Location, size, and surroundings

About

Hartford is a city within Warren County, Iowa, United States.

Location

City in Warren County, IA, US

Co-ordinates

DEC41.457729° N, 93.403799° W

DMS41° 27′ 27.82″ N, 93° 24′ 13.68″ W

Population Density & area

697.2/sq mi (269.5/km²)

Total Area

1.09 sq mi (2.82 km²)

Land Area

1.09 sq mi (2.82 km²) · 100%

Water Area

0 sq mi (0 km²) · 0%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

55.4% male

Male 55.4%

Female 44.6%

males per 100 females

Hartford 124.2

Warren County 98.8

Iowa 100.6

Nativity

0.9%

foreign-born population

99.1%Native

0.9% Foreign-born

% Foreign-born

Hartford 0.9%

Warren County 1.5%

Iowa 5.9%

Age Distribution

How the population is spread across age groups

Median Age

39.1

years ∙ half population younger than 39.1, half older

Hartford

39.1

Warren County

38.8

Iowa

38.6

Dependency ratio

70.4

dependents per 100 working-age adults

Hartford 70.4

Warren County 70

Iowa 69.6

AGE DISTRIBUTION

Distribution of age group

Median age

	Hartford	Warren County	Iowa
Age Group
Children (Under 18)	24.6%	24.4%	22.9%
Working age (18-64)	58.7%	58.9%	59%
Senior (65+)	16.7%	16.7%	18.1%
Dependency ratio
Total dependency ratio	70.4	70	69.6
Child dependency ratio	41.9	41.5	38.8
Old-age dependency ratio	28.5	28.5	30.7

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

91.4%

Black

Asian

0.4%

Hispanic

6.1%

Other

2.1%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

16%

chance two random people differ in race and ethnicity

Hartford 16%

Warren County 15.3%

Iowa 31.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Hartford population

	Hartford	Warren County	Iowa
Hispanic or Latino	6.1%	3.7%	7.3%
Mexican	4.5%	2.4%	5%
Puerto Rican	1.6%	0.4%	0.3%
Cuban	0%	0%	0.1%
Other Hispanic / Latino	0%	1%	1.8%
Not Hispanic or Latino	93.9%	96.3%	92.7%
One race	91.8%	93.5%	89.2%
White	91.4%	91.9%	82.3%
Black or African American	0%	0.7%	3.8%
American Indian and Alaska Native	0%	0.1%	0.2%
Asian	0.4%	0.7%	2.5%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0%	0.1%	0.3%
Two or more races (Multiracial)	2.1%	2.8%	3.5%

Household & Families Composition

Household size, type, and family structure

Household structure

64.7% family

Family 64.7%

Non family 35.3%

% family households

Hartford 64.7%

Warren County 69.3%

Iowa 61.6%

Average household size

2.6

persons per household

Hartford

2.6

Warren County

2.55

Iowa

2.36

Household & Family COMPOSITION

Households

Percentage of Hartford population

	Hartford	Warren County	Iowa
Total households	292	20,679	1,315,707
Average houshold size	2.6	2.55	2.36
Family households	189	14,336	809,836
Average family size	3.17	3.07	2.98
Married couple family	134	11,467	635,347
Other families	55	2,869	174,489
Male householder	7	1,091	56,457
Female householder	48	1,778	118,032
Non-family households	103	6,343	505,871
One-person households	81	5,441	406,436
Male householder	56	2,224	193,582
Senior (65+) living alone	13	885	58,028
Female householder	25	3,217	212,854
Senior (65+) living alone	16	1,952	111,645
Other living arrangements	22	902	99,435

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

317

housing units

Hartford 317

Warren County 21,921

Iowa 1,437,699

Occupancy status

92.1% occupied

Occupied 92.1%

Vacant 7.9%

vacancy rate

Hartford 7.9%

Warren County 5.7%

Iowa 8.5%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

73.2%

Single family houses

73.2%

Apartments in multi-unit structures

Mobile homes

26.8%

Boat, RV, van, etc

Median Year Built

1972

Half of houses were built before 1972, and half after.

Historic ∙ 1939 or earlier

16.7%

Postwar & mid-century ∙ 1940 - 1969

25.2%

Late 20th century ∙ 1970 - 1999

47%

Modern ∙ 2000 or later

11%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Hartford	Warren County	Iowa
Rooms per unit
Median rooms	5.4	6.2	5.9
1–3 rooms	2.8%	8.4%	11.8%
4–6 rooms	66.2%	46.5%	47.4%
7+ rooms	30.9%	45.2%	40.7%
Bedrooms
No bedroom / studio	0.3%	1.8%	1.7%
1 bedroom	0.9%	4.6%	9.2%
2 bedrooms	32.2%	20.3%	27%
3 bedrooms	44.5%	41.2%	37.3%
4+ bedrooms	22.1%	32%	24.7%
At a glance
Median year built	1972	1985	1972
Total housing units	317	21,921	1,437,699

Occupancy Profile

Who is inside and how they use it

Homeownership

94.5% owners

Renter-occupied 5.5%

Owner-occupied 94.5%

homeownership rate

Hartford 94.5%

Warren County 82.3%

Iowa 71.7%

Average household size

2.52

Owner-occupied

Renter-occupied

owner-occupied average size

Hartford 2.52

Warren County 2.66

Iowa 2.5

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Hartford	Warren County	Iowa
Total occupied units	292	20,679	1,315,707
Year moved in
2020 or later	12.7%	21.4%	24.3%
2010 to 2019	42.1%	42%	38.7%
2000 to 2009	11.3%	16.8%	16.4%
1999 or earlier	33.9%	19.8%	20.7%
Occupants per room
1.00 or fewer	99%	98.7%	98.4%
1.01 to 1.50	0%	1.1%	1.1%
1.51 or more	1%	0.2%	0.5%
Vehicles availability
No vehicles	0.7%	3.3%	5.4%
1 vehicle	26.4%	25.1%	30.5%
2 vehicles	47.3%	40%	37.8%
3 or more vehicles	25.7%	31.6%	26.3%
House heating fuel used
Gas	74.3%	73%	72.8%
Electricity	19.9%	24.3%	24.4%
Solar	0%	0.1%	0.1%
Fuel oil, kerosene etc	0%	0.4%	0.3%
All other fuels	3.4%	2%	1.8%
No fuel used	2.4%	0.2%	0.6%
Selected characteristics
Lacking complete plumbing	0%	0.1%	0.3%
Lacking complete kitchen	0%	1.1%	0.8%
No telephone service available	0%	1.1%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$176,700

owner-occupied units

Median value(USD)

Hartford

$176,700

Warren County

$269,600

Iowa

$208,000

Housing Cost Burden

30.3%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

30.3%

Owners without a mortgage

10.9%

Renters

56.3%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Hartford	Warren County	Iowa
Property value
Median Value	$176,700	$269,600	$208,000
Under $100,000	27.9%	6.5%	17.8%
$100,000 - $200,000	36.9%	21.6%	30%
$200,000 - $300,000	27.2%	28.1%	23.1%
$300,000 - $500,000	5.1%	31.7%	21.3%
$500,000 - $1,000,000	2.9%	11.1%	6.8%
$1,000,000 and more	0%	0.9%	1.1%
Owner-occupied households
With a mortgage	59.8%	65.1%	59.4%
Without a mortgage	40.2%	34.9%	40.6%
Median monthly owner costs
With a mortgage	$1,366	$1,816	$1,533
Without a mortgage	$633	$718	$616
Gross rent
Median rent	$1,167	$973	$972

Education Profile

How educated is the community and how education pays off

Adults with a college degree

14.5%

of adults 25+ with a bachelor's degree or higher

Hartford 14.5%

Warren County 33.3%

Iowa 31.4%

Adults without a high school diploma

8.6%

of adults (25+) without a high school diploma

Hartford 8.6%

Warren County 3.2%

Iowa 6.7%

School Enrollment

Who is enrolled in school and at what level

School enrollment

170

population (age 3+) enrolled in school

Nursery / Preschool

5.9%

K–12

87.6%

College / Undergraduate

6.5%

Graduate / Professional

College-going rate (18-24 yr olds)

20.8%

of 18-24-year-olds in college or graduate school

Hartford

20.8%

Warren County

51.2%

Iowa

42.3%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Hartford	Warren County	Iowa
Total enrolled (age 3+)	170	14,106	784,322
Nursery / preschool	5.9%	5.7%	6.2%
K–12	87.6%	69.9%	68.4%
Kindergarten	10%	4.3%	5.2%
Elementary: Grades 1–4	41.8%	22.1%	20.3%
Elementary: Grades 5–8	17.1%	21.8%	21.3%
High School: Grades 9–12	18.8%	21.7%	21.6%
College or graduate school	6.5%	24.4%	25.4%
College, undergraduate	6.5%	22%	20.8%
Graduate, professional school	0%	2.5%	4.6%
College-going rate · 18-24 yr olds	20.8%	51.2%	42.3%
School type
Public school	95.9%	78.6%	84.4%
Private school	4.1%	21.4%	15.6%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

525

population 25 years and over

Total adults (25+)

Less than 9th grade

0.8%

9th-12th, no diploma

7.8%

HS graduate

40.2%

Some college no degree

27%

Associates degree

9.7%

Bachelors degree

11.6%

Graduate or professional degree

2.9%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

50% · 50%

9th-12th, no diploma

41.5% · 58.5%

HS graduate

69.2% · 30.8%

Some college no degree

49.3% · 50.7%

Associates degree

37.3% · 62.7%

Bachelors degree

37.7% · 62.3%

Graduate or professional degree

46.7% · 53.3%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Hartford	Warren County	Iowa
Population (25+)	525	36,256	2,154,149
Less than 9th grade	0.8%	0.9%	2.7%
9th–12th, no diploma	7.8%	2.3%	4%
High school diploma or GED	40.2%	27.9%	30%
Some college, no degree	27%	22.3%	19.7%
Associate's degree	9.7%	13.2%	12.1%
Bachelor's degree or higher	14.5%	33.3%	31.4%
Bachelor's degree	11.6%	23.5%	20.9%
Graduate or professional	2.9%	9.7%	10.5%
High School or higher	91.4%	96.7%	93.3%

Earnings by education level

percentage as applicable

Median Earnings

$45,987

Median earnings for adults 25+, by level

Less than HS graduate

$31,591

HS graduate

$47,500

Some college or associates

$43,750

Bachelors degree

$44,688

Graduate or professional degree

$99,167

Poverty Rate

for ages 25+, with bachelors degree or higher

Less than HS graduate

6.7%

HS graduate

7.1%

Some college or associates

9.3%

Bachelors degree or higher

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Hartford	Warren County	Iowa
Median earnings
Population 25+, with earnings	$45,987	$60,221	$51,106
Less than high school graduate	$31,591	$36,983	$35,996
High school graduate (includes equivalency)	$47,500	$50,540	$41,528
Some college or associate's degree	$43,750	$52,765	$47,635
Bachelor's degree	$44,688	$69,164	$62,744
Graduate or professional degree	$99,167	$88,147	$80,022
Poverty rates
Less than high school graduate	6.7%	21.1%	21.5%
High school graduate (includes equivalency)	7.1%	8.5%	12.4%
Some college or associate's degree	9.3%	5.7%	8.1%
Bachelor's degree or higher	0%	2.3%	3.8%

Insights for Hartford, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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