51555 Zip Code Population and Demographics

In this article, we'll explore the population statistics for the zip code 51555, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

51555 is a zip code in Harrison County and Pottawattamie County, Iowa, which covers Calhoun, Cincinnati, Jefferson, La Grange, Magnolia, Raglan, St. John, Taylor, Boomer, and Rockford, with a total population of 4,697 people.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in the 51555 zip code. The most basic data is the total population, which is the total number of people living in 51555.

The estimated population of people living in 51555 is 4,697, with a median age of 43.1.

We can look back at data from previous years to see how the population in the 51555 area has changed over the last 5 years.

Year Population Change 5-Year Change
2021
4,697
+4.54%
-3.75%
2020
4,493
 -7.87% -
2019
4,877
 -0.16% -
2018
4,885
+0.1%
-
2017
4,880
 - -

Population of 51555 by Race and Ethnicity

How much has the race and ethnicity of the population in the 51555 zip code changed? The US Census Bureau gives us a few defined types that the population is broken down into.

Let's look at the total numbers and also the change over the last 5 years.

Race 2021 2017 Change
White
94.5%
96.6%
 -2.17%
Black/African American
0%
0%
 0.00%
Native
0.5%
0%
 0.00%
Hispanic
1.3%
1.9%
 -31.58%
Asian
0%
0.3%
 -100.00%
Hawaiian/Pacific Islander
0%
0%
 0.00%
Two Or More Races
3.8%
1.1%
 +245.45%
Other
0%
0%
 0.00%

This data can be very important for anybody studying the 51555 zip for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of 51555 by Age and Gender

We can also monitor the change of the age and gender in the 51555 zip code to track track trends in the population over time.

We can see how the population in 51555 has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 43.1 -2.05% 43.7 -0.46% 41.9 -5.42%
2020 44 -1.57% 43.9 -0.68% 44.3 -3.7%
2019 44.7 0% 44.2 -1.12% 46 +3.14%
2018 44.7 -1.97% 44.7 -0.89% 44.6 -2.62%
2017 45.6 - 45.1 - 45.8 -

The median age of the 51555 zip gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population in the 51555 area, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 264 -17.34% 253 2.35% 215 251
10 to 19 306 +11.21% 301 +41.62% 327 437
20 to 29 215 +11.21% 241 -19.08% 236 197
30 to 39 187 +28.84% 237 +22.76% 245 281
40 to 49 409 -36.69% 426 -14.94% 270 364
50 to 59 344 +10.86% 367 -9.99% 381 328
60 to 69 377 -25.29% 353 -16.82% 270 288
70+ 236 +12.21% 364 -4.8% 266 341

Median Household Income

The latest median household income for the 51555 zip code is $70,944.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less.

The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for 51555.

  • Under 25
    $56,071.00
  • 25 to 44
    $73,537.00
  • 45 to 64
    $81,176.00
  • 65 and over
    $46,307.00

Average Household Income

Whenever we ask what is the average household income in the 51555 zip code, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in 51555, and then dividing that number by the total number of households.

This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of 51555 is currently $78,523.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

3.37% of households in 51555 are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of 51555 against other zip codes.

  • Less than $24,999
    20.70%
  • $25,000 to $49,999
    13.53%
  • $50,000 to $74,999
    19.91%
  • $75,000 to $99,999
    15.64%
  • $100,000 to $149,999
    22.75%
  • $150,000 to $199,999
    4.11%
  • $200,000 or more
    3.37%

Per Capita Income

The per capita income in 51555 is $32,401.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of 51555 by the total population of 51555.

This is different from the average or mean income because it includes and accounts for all people living in the 51555 area, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in 51555 to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    10.50%
  • Bachelor's degree
    21.46%
  • Some college or associate's degree
    13.91%
  • High school diploma or equivalent
    50.21%
  • Less than high school diploma
    3.93%

Employment

Employment rates are all based around the total population in 51555 that are over the age of 16.

Currently, the total population of the 51555 zip over the age of 16 is 3,736.

Of those people, a total of 66.10% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in 51555 is 64.60%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate. Here's how that breaks down for the 51555 zip code.

Age Population Participation Unemployment Rate
16 to 19 years 269 51.30% 3.60%
20 to 24 years 246 81.70% 12.40%
25 to 29 years 187 89.30% 1.80%
30 to 34 years 213 81.20% 1.70%
35 to 44 years 627 90.00% 2.80%
45 to 54 years 659 85.30% 0.70%
55 to 59 years 370 81.10% 0.00%
60 to 64 years 375 64.30% 0.00%
65 to 74 years 458 26.40% 0.00%
75 years and over 332 0.60% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in 51555. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau (which we mentioned earlier in this article).

Age Population Participation Unemployment Rate
White 3,593 65.90% 2.20%
Black or African American 0 0.00% 0.00%
American Indian and Alaska Native 0 0.00% 0.00%
Asian 0 0.00% 0.00%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 5 100.00% 0.00%
Two or more races 138 69.60% 3.10%
Hispanic or Latino 30 90.00% 0.00%
Not Hispanic or Latino 3,578 65.80% 2.30%

Occupations

In this section we can look at the most common occupations for people living in the 51555 area as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in 51555 is 2,413, with median earnings of $40,650.00.

Women in 51555 are earning approximately 75.00% of the men's earnings.

Population Earnings
Total 2,413 $40,650.00
Male 1,263 $49,792.00
Female 1,150 $37,351.00

Occupations by Category

In the table below, we can break down the population and earnings for 51555 even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 227 $57,396.00
Business and Financial 103 $44,861.00
Computer and Mathematical 13 $58,438.00
Architecture and Engineering 27 $61,705.00
Life, Physical, and Social Science 20 $51,250.00
Community and Social Service 29 $62,250.00
Legal 7 $0.00
Educational and Library 189 $37,829.00
Arts, Design, Entertainment, Sports, and Media 44 $36,625.00
Healthcare Practitioners 192 $61,154.00
Healthcare Support 48 $31,731.00
Firefighters and Protective Service 8 $0.00
Law Enforcement 23 $0.00
Food Preparation and Serving 156 $9,881.00
Building and Grounds Cleaning 67 $38,389.00
Personal Care and Service 81 $29,345.00
Sales 216 $28,000.00
Office and Administrative Support 350 $39,750.00
Farming, Fishing, and Forestry 6 $0.00
Construction and Extraction 167 $53,783.00
Installation, Maintenance, and Repair 77 $80,288.00
Production 183 $49,236.00
Transportation and Material Moving 98 $41,250.00

Occupations by Gender

Now we can also look at the occupations by category for 51555 when it is broken down by male and female.

This lets us see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings for 51555.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 103 $72,629.00 124 $51,250.00
Business and Financial 66 $55,909.00 37 $42,750.00
Computer and Mathematical 13 $58,438.00 0 $0.00
Architecture and Engineering 27 $61,705.00 0 $0.00
Life, Physical, and Social Science 10 $0.00 10 $0.00
Community and Social Service 5 $0.00 24 $180,357.00
Legal 0 $0.00 7 $0.00
Educational and Library 61 $32,460.00 128 $37,895.00
Arts, Design, Entertainment, Sports, and Media 20 $0.00 24 $0.00
Healthcare Practitioners 17 $122,188.00 175 $59,107.00
Healthcare Support 6 $0.00 42 $31,154.00
Firefighters and Protective Service 8 $0.00 0 $0.00
Law Enforcement 23 $0.00 0 $0.00
Food Preparation and Serving 72 $11,094.00 84 $9,048.00
Building and Grounds Cleaning 57 $38,630.00 10 $0.00
Personal Care and Service 7 $0.00 74 $28,929.00
Sales 112 $55,000.00 104 $23,250.00
Office and Administrative Support 66 $33,125.00 284 $39,900.00
Farming, Fishing, and Forestry 6 $0.00 0 $0.00
Construction and Extraction 159 $54,046.00 8 $0.00
Installation, Maintenance, and Repair 77 $80,288.00 0 $0.00
Production 178 $49,583.00 5 $0.00
Transportation and Material Moving 98 $41,250.00 0 $0.00

Households and Family Size

A household is defined by the US Census Bureau as a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 1,899 households in 51555, with an average household size of 2.43 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 1,235 families living in the 51555 zip code with an average family size of 3.02 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each, that live in 51555:

Married Male Female Nonfamily
Total Households 965 91 179 664
Average Household Size 3.09 2.54 3.32 1.22
Total Families 965 91 179 0
Average Household Size 3.06 2.4 3.12 0

Poverty

Of the 1,235 families living in 51555, 3.60% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in 51555:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 2,131 housing units in 51555.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 1,899 89.11%
Vacant 232 10.89%

21.82% of the total 2,131 housing units in 51555 are rental units. This is approximately 465 properties.

For owner-occupied housing units, a total of 1,356 are occupied by the owner - or 63.63% of the total.

Rental Rates

The median rent for a property in 51555 is $723.00.

In the chart below, we can look at the number of rental properties in 51555 that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    78
  • Less than $500
    109
  • $500 to $999
    263
  • $1,000 to $1,499
    87
  • $1,500 to $1,999
    6
  • $2,000 to $2,499
    0
  • $2,500 to $2,999
    0
  • $3,000 or more
    0

Property Value

The median value of a property in 51555 is $131,100.00.

Just like with rental rates, we can look at the number of properties in 51555 that fall into a particular value range.

  • Less than $50,000
    129
  • $50,000 to $99,999
    337
  • $100,000 to $149,999
    330
  • $150,000 to $199,999
    168
  • $200,000 to $299,999
    219
  • $300,000 to $499,999
    117
  • $500,000 to $999,999
    56
  • $1,000,000 or more
    0

Property Age

We can also look at the age of properties in 51555. The chart below shows the number of properties in 51555 that fall into a particular age range.

  • 1939 or earlier
    914
  • 1940 to 1949
    89
  • 1950 to 1959
    93
  • 1960 to 1969
    246
  • 1970 to 1979
    299
  • 1980 to 1989
    147
  • 1990 to 1999
    198
  • 2000 to 2009
    110
  • 2010 to 2013
    35
  • 2014 or later
    0

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in 51555 that have a particular number of vehicles available.

  • No vehicles available
    108
  • 1 vehicle available
    539
  • 2 vehicles available
    604
  • 3 or more vehicles available
    648

Commuting to Work

In this section, we can also look at how people in 51555 get to work. The chart below shows the number of people in 51555 that commute to work in a particular way.

23.6 minutes is the average travel time to work for people in 51555.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    263
  • 5 to 9 minutes
    348
  • 10 to 14 minutes
    195
  • 15 to 19 minutes
    152
  • 20 to 24 minutes
    107
  • 25 to 29 minutes
    46
  • 30 to 34 minutes
    483
  • 35 to 39 minutes
    162
  • 40 to 44 minutes
    145
  • 45 to 59 minutes
    239
  • 60 to 89 minutes
    84
  • 90 or more minutes
    0

Summary

We've covered a LOT of demographic and population data for 51555 in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.

States in 51555

If you want to see how the population and demographics of 51555 compare to other zip codes in Iowa, check out the list of all Iowa zip codes below: