Zip code 51640: Hamburg, Iowa

Q: What city is zip code 51640?

51640 is assigned to Hamburg, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 51640 in?

51640 is mostly in Fremont County, but it extends into 1 other county.

Q: What is the population of 51640?

About 1,381 people live in 51640, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 51640?

The median household income in 51640 is $65,385.

Q: What zip codes are near 51640?

The closest zip codes to 51640 are 51650, 64496, 68421, 51652, 51648.

Residential delivery areaFremont CountyCentral Time

Population

1,381

Median household income

$65K

U.S. $81K

Median home value

$123K

U.S. $333K

Median rent

$729/mo

U.S. $1,413

Median age

43.1

U.S. 38.9

Land area

115 sq mi

12 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 51640

51640 is a rural zip code in Hamburg, Iowa (Fremont County), covering 115 sq mi of land. About 1,381 people live here, or 12 per square mile. The median resident is 43.1 years old, compared with 38.9 nationally.

The median household earns $65,385 a year, 19% below the national median of $80,734. 6.7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $122,900, or 1.9 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 79% of occupied homes are lived in by their owners, and renters pay a median of $729 a month.

18% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 23 minutes each way, and 4% of workers work from home. The most common jobs among working residents are in production and manufacturing; management; and construction and repair.

How 51640 compares

Sorted from highest to lowest national percentile

Veterans11.7%
94th
U.S. 6.2% · IA 6.5%83rd of 911 in IA
Housing vacancy14.8%
86th
U.S. 10.1% · IA 8.5%186th of 909 in IA
Residents 65 and older22.7%
86th
U.S. 17.2% · IA 18.1%311th of 911 in IA
Government workers20.4%
85th
U.S. 14.5% · IA 14.5%127th of 911 in IA
Median age43.1
78th
U.S. 38.9 · IA 38.6420th of 911 in IA
Homeownership rate79.1%
76th
U.S. 65.2% · IA 71.7%565th of 909 in IA
Residents under 1825%
74th
U.S. 22% · IA 22.9%312th of 911 in IA
Self-employed workers11.3%
72nd
U.S. 10% · IA 10.2%565th of 911 in IA
Median earnings per worker$50,625
57th
U.S. $49,666 · IA $47,712299th of 910 in IA
Healthcare workers9.7%
53rd
U.S. 9.7% · IA 9.2%337th of 911 in IA
Per capita income$36,780
40th
U.S. $44,673 · IA $40,877541st of 911 in IA
Median household income$65,385
29th
U.S. $80,734 · IA $75,059633rd of 896 in IA
Average commute23 min
29th
U.S. 26.4 min · IA 19.8 min441st of 902 in IA
Income inequality (Gini)0.407
26th
U.S. 0.483 · IA 0.444375th of 908 in IA
Broadband access88.3%
25th
U.S. 91% · IA 88.9%474th of 909 in IA
Poverty rate6.7%
23rd
U.S. 12.5% · IA 11.1%571st of 909 in IA
Bachelor's degree or higher18.4%
17th
WeaknessU.S. 35.7% · IA 31.4%573rd of 911 in IA
Uninsured rate3.1%
13th
StrengthU.S. 8.4% · IA 5%514th of 911 in IA
Tech workers0.7%
8th
U.S. 3.8% · IA 2.9%468th of 911 in IA
Diversity index13.6
7th
U.S. 61.4 · IA 31.4436th of 911 in IA
Median home value$122,900
5th
U.S. $332,700 · IA $208,000648th of 881 in IA
Work from home4.2%
5th
U.S. 15.1% · IA 11.3%739th of 911 in IA
Median gross rent$729
4th
U.S. $1,413 · IA $972544th of 771 in IA
Population1,381
2nd
U.S. 334,922,499 · IA 3,210,507374th of 911 in IA
Unemployment rate1%
2nd
StrengthU.S. 5.2% · IA 3.6%651st of 911 in IA
Foreign-born residents0.2%
2nd
U.S. 14.1% · IA 5.9%658th of 911 in IA
Rent-burdened renters22.6%
2nd
StrengthU.S. 51.1% · IA 43.9%604th of 882 in IA
Population density12/sq mi
1st
U.S. 95/sq mi · IA 58/sq mi701st of 911 in IA

Measure	51640	Fremont	IA	U.S.	National percentile	Rank in IA
Veterans	11.7%	8.1%	6.5%	6.2%	94th	83rd of 911
Housing vacancy	14.8%	9.7%	8.5%	10.1%	86th	186th of 909
Residents 65 and older	22.7%	24.2%	18.1%	17.2%	86th	311th of 911
Government workers	20.4%	21.6%	14.5%	14.5%	85th	127th of 911
Median age	43.1	46.8	38.6	38.9	78th	420th of 911
Homeownership rate	79.1%	78.3%	71.7%	65.2%	76th	565th of 909
Residents under 18	25%	21.4%	22.9%	22%	74th	312th of 911
Self-employed workers	11.3%	16.5%	10.2%	10%	72nd	565th of 911
Median earnings per worker	$50,625	$48,338	$47,712	$49,666	57th	299th of 910
Healthcare workers	9.7%	8.9%	9.2%	9.7%	53rd	337th of 911
Per capita income	$36,780	$42,556	$40,877	$44,673	40th	541st of 911
Median household income	$65,385	$71,621	$75,059	$80,734	29th	633rd of 896
Average commute	23 min	22.3 min	19.8 min	26.4 min	29th	441st of 902
Income inequality (Gini)	0.407	0.465	0.444	0.483	26th	375th of 908
Broadband access	88.3%	87.5%	88.9%	91%	25th	474th of 909
Poverty rate	6.7%	7.7%	11.1%	12.5%	23rd	571st of 909
Bachelor's degree or higherWeakness	18.4%	20.8%	31.4%	35.7%	17th	573rd of 911
Uninsured rateStrength	3.1%	3.5%	5%	8.4%	13th	514th of 911
Tech workers	0.7%	0.9%	2.9%	3.8%	8th	468th of 911
Diversity index	13.6	16.1	31.4	61.4	7th	436th of 911
Median home value	$122,900	$154,400	$208,000	$332,700	5th	648th of 881
Work from home	4.2%	8.1%	11.3%	15.1%	5th	739th of 911
Median gross rent	$729	$746	$972	$1,413	4th	544th of 771
Population	1,381	6,514	3,210,507	334,922,499	2nd	374th of 911
Unemployment rateStrength	1%	0.8%	3.6%	5.2%	2nd	651st of 911
Foreign-born residents	0.2%	1.6%	5.9%	14.1%	2nd	658th of 911
Rent-burdened rentersStrength	22.6%	24.6%	43.9%	51.1%	2nd	604th of 882
Population density	12/sq mi	13/sq mi	58/sq mi	95/sq mi	1st	701st of 911

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

23%

5–17

18–24

10%

25–34

12%

35–44

11%

45–54

12%

55–64

12%

65–74

11%

75+

Median age

43.1

Under 18

25%

65 and over

22.7%

Race and ethnicity

White93%
Black0%
Hispanic3%
Asian0.7%
Native American0.1%
Pacific Islander0%
Other0%
Multiracial4%

Diversity index

13.6

U.S. 61.4

Foreign-born

0.2%

U.S. 14.1%

Born in state

38%

Language spoken at home (households)

English only

98%

Spanish

0.5%

Other Indo-European

Asian / Pacific

Other

Households

Households: 588
Average household size: 2.4
Family households: 58.5%
Married couples: 52.2%
Living alone: 33.5%
Veterans (of adults): 11.7%
Male / female: 55% / 45%

Income and poverty

Household income distribution

<$25k

17%

$25–50k

19%

$50–75k

19%

$75–100k

15%

$100–150k

16%

$150–200k

$200k+

Median household income

51640

$65,385

Fremont Co.

$71,621

Iowa

$75,059

United States

$80,734

Per capita income

$36,780

U.S. $44,673

Poverty rate

6.7%

U.S. 12.5%

Households earning $150K+

13.4%

U.S. 23%

Income inequality (Gini)

0.407

U.S. 0.483

Housing

Median home value

51640

$122,900

Fremont Co.

$154,400

Iowa

$208,000

United States

$332,700

Median gross rent

51640

$729

Fremont Co.

$746

Iowa

$972

United States

$1,413

Types of housing

Single-family

94%

2–4 units

5–19 units

20+ units

Mobile home

0.3%

Boat, RV, van

Housing units: 690
Owner-occupied: 79.1%
Vacant: 14.8%
Median year built: 1949
Median rooms: 6.2
Renters paying 30%+ of income: 22.6%
Renters paying 50%+ of income: 7.1%
Home value to income: 1.9× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

85%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

32%

10–19

18%

20–29

19%

30–44

13%

45–59

60+

12%

Average commute

23 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

62.5%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Production

19%

Management

14%

Construction and repair

11%

Office and admin

10%

Healthcare

10%

Business and finance

Cleaning and personal care

Education

Sales

Transportation and moving

Food service

Police and fire

Engineering and science

Legal and social services

Farming, fishing and forestry

Arts, media and sports

Computer and math

0.7%

Industries

Manufacturing

18%

Health care and social assistance

16%

Agriculture and mining

11%

Retail

11%

Construction

Transportation, warehousing and utilities

Public administration

Admin, support and management

Education

Information

Restaurants and hotels

Other services

Wholesale

Finance, insurance and real estate

Professional and technical services

0.4%

Arts and recreation

Median earnings per worker

$50,625

U.S. $49,666

Self-employed

11.3%

U.S. 10%

Government workers

20.4%

U.S. 14.5%

Nonprofit workers

11.2%

U.S. 8.8%

Median earnings by type of work

Type of work	51640	U.S.
Management, business, science and arts	$62,292	$74,888
Service	$16,875	$26,804
Sales and office	$40,000	$40,476
Construction and maintenance	$82,955	$49,199
Production and transportation	$54,583	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

40%

Some college

25%

Associate's

13%

Bachelor's

15%

Graduate

High school graduate or higher: 96.9%
Bachelor's degree or higher: 18.4%
Graduate or professional degree: 3.3%
Households with broadband: 88.3%
Cable, fiber or DSL: 64.1%
No internet access: 6.6%
Without health insurance: 3.1%
Limited-English households: 0%

Geography

City (USPS): Hamburg
State: Iowa
County: Fremont County
Center point: 40.6262° N, 95.6614° W
Land area: 115 sq mi
Water area: 1.6 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

51640 spans 2 counties

Fremont County82% of land
Atchison County18% of land

Zip codes near 51640

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
51650	Riverton, IA	6.9 mi	197	$49,063	$54,200
64496	Watson, MO	9.1 mi	224	$53,021	$206,600
68421	Peru, NE	10 mi	987	$61,600	$113,800
51652	Sidney, IA	10 mi	1,569	$82,200	$134,800
51648	Percival, IA	11 mi	257	$59,766	$164,000
68410	Nebraska City, NE	12 mi	8,980	$71,640	$182,900
51639	Farragut, IA	12 mi	919	$84,688	$157,300
68379	Julian, NE	13 mi	42	$41,250	—
64482	Rock Port, MO	14 mi	1,980	$66,534	$120,000
68321	Brownville, NE	16 mi	480	—	$309,800
51654	Thurman, IA	16 mi	325	$90,188	$231,800
51647	Northboro, IA	17 mi	172	$23,633	—

Zip codes like 51640 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 51640

What city is zip code 51640?

51640 is assigned to Hamburg, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 51640 in?

51640 is mostly in Fremont County, but it extends into 1 other county.

What is the population of 51640?

About 1,381 people live in 51640, according to the Census Bureau's American Community Survey.

What time zone is 51640 in?

51640 is in Central Time.

What is the median household income in 51640?

The median household income in 51640 is $65,385.

What zip codes are near 51640?

The closest zip codes to 51640 are 51650, 64496, 68421, 51652, 51648.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 51640, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.