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Osterdock, Iowa

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The location of Osterdock

Census Data for Osterdock ...

Population ...

The most recent Census Estimate<1> was for 2018 and it gave Osterdock a population of 56 people.

The last Decennial Census<2> was in 2010, which gave Osterdock a population of 59 people.

The city of Osterdock is located in Clayton County. The 2010 Census gave Clayton County a population of 18,129 people. This means that Osterdock had 0.33% of the county's total population, making it Clayton's 15th most populous community.

At the same time, Iowa had a population of 3,046,355 people.

Area ...

When the Census Bureau conducts a census for a city like Osterdock, 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 Osterdock reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Osterdock 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 Osterdock has a total area of 0.46 square miles [1.2 km²].

Clayton County has a land area of 778 square miles [2,016.4 km²]. At 0.46 square miles [1.2 km²], Osterdock has 0.06% 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:   42° 43' 52"   (or 42.73°)             [Map]

Lon:   -91° 9' 28"   (or -91.16°)

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 (59 people) and land area (0.46 square miles [1.2 km²]) values from the 2010 Census, Osterdock had a population density of 128.3 people per square mile [49.52 people/km²].

In comparison, the 2000 Census shows Osterdock had a population of 50 people and a land area of 0.45 square miles [1.2 km²]. This gives a population density of 109.9 people per square mile [42.45 people/km²]

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

Housing Units ...

At the time of the 2010 Census, Osterdock had 23 Housing Units<3> and with its population of 59 people, this averages 2.57 people per Housing Unit.

The 2010 Census shows Osterdock had a land area of 0.46 square miles [1.2 km²]. This translates to 50 Housing Units per square mile [19.31 housing units/km²].

From the Census of 2000: Osterdock had 21 Housing Units, a population of 50 people and a land area of 0.45 square miles [1.2 km²]. This gives a density of 2.38 people per Housing Unit and 46.17 Housing Units per square mile [17.83 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 Osterdock and you need to be careful when comparing results between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).

Clayton County ...

The community of Osterdock is located in Clayton County.

The county had a population of 18,129 people at the 2010 Census. With it's population of 59 people, Osterdock represented 0.33% of the county's total.

In addition, where the city of Osterdock has a population density of 128.3 people per square mile [49.52 people/km²], Clayton County averages 23.29 people per square mile [8.99 people/km²].

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

Population Rings for Osterdock ...

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

  Radius   No of
  Since 2010    
5 mi   [8 km]41,989-5.42%
10 mi   [16 km]115,183-3.89%
15 mi   [24 km]209,402-2.92%
20 mi   [32 km]3921,480-1.5%
25 mi   [40 km]6355,103+2.21%
30 mi   [48 km]87127,269+1.1%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Osterdock, 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 Osterdock. 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 1.14% larger than the 2000 Census.

The 2010 Census shows that the total area for Osterdock was 0.46 square miles [1.2 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 0.45 square miles [1.2 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 Osterdock, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Osterdock.

For the 2010 Census, the location was given as:

Lat:   42.731386°   (or 42°43'52" N)             [Map]

Lon:   -91.157834°   (or -91°9'28" W)

For the 2000 Census, the location given was:

Lat:   42.729756°   (or 42°43'47" N)             [Map]

Lon:   -91.161709°   (or -91°9'42" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 1,195 feet to the northeast<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 (#2396100) to Osterdock. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Osterdock. The GNIS point has been mapped to the latitude/longitude:

Lat:   42.731565°   (or 42°43'53" N)             [Map]

Lon:   -91.158142°   (or -91°9'29" W)

The GSP location given for the 2010 Census lies 105.2 feet to the southeast<6> of the point given by the GNIS for Osterdock. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Osterdock.

Miscellaneous Information for Osterdock ...

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 Clayton County or the city of Osterdock:

The GNIS Codes ...

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

GNIS ID for Osterdock: 2396100

GNIS ID for Clayton County: 465210

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: 043 (Clayton County)

Place Code: 60015 (Osterdock)

State & County Code: 19/043 (Iowa / Clayton County)

State & Place Code: 19/60015 (Iowa / Osterdock)

Misc. Census Codes ...

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

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

Other Roadside Stops ...

Search for a Community located in Iowa

About Clayton 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 Osterdock. If you can help, please contact us through our Feedback Page.

The official website for Clayton 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).

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<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 299 degrees and a distance of 1,195 feet.

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<6>The calculated bearing (or angle) to the GNIS point is 231 degrees and a distance of 105.2 feet.

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This page was last modified: 27 Aug 2019