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Mount Pleasant, Iowa

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Census Data for Mount Pleasant ...

Population ...

The most recent Census Estimate<1> was for 2018 and it gave Mount Pleasant a population of 8,737 people.

The last Decennial Census<2> was in 2010, which gave Mount Pleasant a population of 8,668 people.

The city of Mount Pleasant is located in Henry County. The 2010 Census gave Henry County a population of 20,145 people. This means that Mount Pleasant had 43.03% of the county's total population, making it Henry's most populous community.

At the same time, Iowa had a population of 3,046,355 people, meaning that Mount Pleasant had 0.28% of the total population of Iowa - making it the state's 45th most populous community.

Area ...

When the Census Bureau conducts a census for a city like Mount Pleasant, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually shaped as a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the city.

Things like the population, area and housing for Mount Pleasant reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Mount Pleasant might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.

The 2010 Census shows that the sampling area for Mount Pleasant has a total area of 8.52 square miles [22.1 km²]. Of this total, a small amount of the area is covered by water (0.01 square miles [0 km²]).

Henry County has a land area of 434.3 square miles [1,124.9 km²]. At 8.51 square miles [22 km²], Mount Pleasant has 1.96% of the county's total land area.

Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:

Lat:   40° 57' 43"   (or 40.96°)             [Map]

Lon:   -91° 32' 49"   (or -91.55°)

More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).

Population Density ...

Using the population (8,668 people) and land area (8.51 square miles [22 km²]) values from the 2010 Census, Mount Pleasant had a population density of 1,017 people per square mile [392.8 people/km²].

In comparison, the 2000 Census shows Mount Pleasant had a population of 8,751 people and a land area of 7.69 square miles [19.9 km²]. This gives a population density of 1,135 people per square mile [438.3 people/km²]

NOTE: Be aware that when comparing population density between the 2000 Census and the 2010 Census, there were changes in the sampling area for Mount Pleasant. You need to be careful when making such a comparison, the differences are likely to lead to a questionable comparison. More information about the nature of these changes can be found in the section Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Mount Pleasant had 3,365 Housing Units<3> and with its population of 8,668 people, this averages 2.58 people per Housing Unit.

The 2010 Census shows Mount Pleasant had a land area of 8.51 square miles [22 km²]. This translates to 394.9 Housing Units per square mile [152.5 housing units/km²].

From the Census of 2000: Mount Pleasant had 3,355 Housing Units, a population of 8,751 people and a land area of 7.69 square miles [19.9 km²]. This gives a density of 2.61 people per Housing Unit and 435.2 Housing Units per square mile [168 housing units/km²].

NOTE: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2000 Census and the 2010 Census, there were changes in the sampling area for Mount Pleasant and you need to be careful when comparing values between the censuses. More information about these differences can be found in the section called Census-to-Census Observations ... (see below).

Henry County ...

Mount Pleasant is located in Henry County and is the County Seat for Henry County.

The county had a population of 20,145 people at the 2010 Census. With it's population of 8,668 people, Mount Pleasant represented 43.03% of the county's total.

In addition, where the city of Mount Pleasant has a population density of 1,017 people per square mile [392.8 people/km²], Henry County averages 46.38 people per square mile [17.91 people/km²].

For more information, please visit our Census Page for Henry County.

Population Rings for Mount Pleasant ...

To help identify the number of people who live in Mount Pleasant and the surrounding area, we have drawn concentric rings centered on Mount Pleasant. We counted the number of communities within each ring and summed their populations.<4>

  Radius   No of
  Since 2010    
5 mi   [8 km]28,848+0.77%
10 mi   [16 km]611,482+0.32%
15 mi   [24 km]1315,103-0.4%
20 mi   [32 km]2320,199-0.68%
25 mi   [40 km]3984,842+0.19%
30 mi   [48 km]5290,666-0.12%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Mount Pleasant, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Mount Pleasant. It's important to note that from one Census to the next, the shape and location of the polygon can change. If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Area ...

The sampling area (or polygon) given for the 2010 Census is 10.52% larger than the 2000 Census.

The 2010 Census shows that the total area for Mount Pleasant was 8.52 square miles [22.1 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 7.71 square miles [20 km²]. Of this total, only a minor amount of the area is covered by water.

Location ...

While generally coinciding with the GPS location (latitude/longitude) of Mount Pleasant, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Mount Pleasant.

For the 2010 Census, the location was given as:

Lat:   40.962205°   (or 40°57'43" N)             [Map]

Lon:   -91.547162°   (or -91°32'49" W)

For the 2000 Census, the location given was:

Lat:   40.966977°   (or 40°58'1" N)             [Map]

Lon:   -91.551203°   (or -91°33'4" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 2,065 feet to the southeast<5> of the location that was used in the 2000 Census.

The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#468416) to Mount Pleasant. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Mount Pleasant. The GNIS point has been mapped to the latitude/longitude:

Lat:   40.963085°   (or 40°57'47" N)             [Map]

Lon:   -91.546549°   (or -91°32'47" W)

The GSP location given for the 2010 Census lies 362.5 feet to the southwest<6> of the point given by the GNIS for Mount Pleasant. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Mount Pleasant.

Miscellaneous Information for Mount Pleasant ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Henry County or the city of Mount Pleasant:

The GNIS Codes ...

The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Mount Pleasant:

GNIS ID for Mount Pleasant: 468416

GNIS ID for Henry County: 465232

GNIS ID for Iowa: 1779785

The FIPS Codes ...

An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):

State Code: 19 (Iowa)

County Code: 087 (Henry County)

Place Code: 54705 (Mount Pleasant)

State & County Code: 19/087 (Iowa / Henry County)

State & Place Code: 19/54705 (Iowa / Mount Pleasant)

Misc. Census Codes ...

Mount Pleasant is located in Census Region #2 (the Midwest Region) and Division #4 (the West North-Central Division).

The US Postal Service ZIP Code ...

While some people have used a ZIP code to identify a community, the purpose of the ZIP code was to make mail delivery more efficient by grouping addresses together. Although the ZIP Code doesn't specifically identify a city like Mount Pleasant, it does identify addresses that are in (or near) Mount Pleasant. It's important to remember that the boundaries of a ZIP Code can be changed, re-assigned or overlapped with other ZIP Codes.

The ZIP code for Mount Pleasant: 52641<7>

Census ZCTA Codes ...

The US Census Bureau created statistical entities that they call ZIP Code Tabulation Areas (ZCTAs) and these ZCTAs are frequently confused with the ZIP codes that come from the US Postal Service (USPS).

ZCTAs were first created for the 2000 Census and at that time, they were based upon the USPS ZIP codes. While largely covering the same areas, the boundaries of a ZCTA do not necessarily match the boundaries of a postal ZIP code with the same number. For example, while a postal ZIP code can cross a county or state line, a Census ZCTA can not. They should be treated as separate entities with no correlation between them.

For more information about the various Federal identification codes, please visit our Misc Page for Mount Pleasant.

Other Roadside Stops ...

Communities in Iowa

About Henry County

About Iowa

Off-the-Road Links ...

The official website of the U.S. Census Bureau

Unfortunately, we don't know of a website for Mount Pleasant. If you can help, please contact us through our Feedback Page.

The official website for Henry County:

The official website for State of Iowa:

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)

Footnotes ...

<1>Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2018.

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<2>Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.

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<3>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

- Return to Citation

<4>The communities in our count are those provided by the 2010 Census, so keep in mind that our population rings will only include the people living in those communities. Smaller communities usually don't participate directly in the Census and therefore they won't be included. While our count is a close approximation, it shouldn't be considered as a complete or accurate count.

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<5>The calculated bearing (or angle) to the 2010 Census location is 212 degrees and a distance of 2,065 feet.

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<6>The calculated bearing (or angle) to the GNIS point is 152 degrees and a distance of 362.5 feet.

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<7>When looking for a ZIP Code, whether Mount Pleasant or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

- Return to Citation






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This page was last modified: 27 Aug 2019