Census Data for Irrigon
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Irrigon a population of 1,790 people.
The last Decennial Census<2> was in 2010, which gave Irrigon a population of 1,826 people.
The city of Irrigon is located in Morrow County. The 2010 Census gave Morrow County; a population of 11,173 people. This means that Irrigon had 16.34% of the county's total population, making it Morrow's 2nd most populous community.
At the same time, Oregon had a population of 3,831,074 people, meaning that Irrigon had 0.05% of the total population of Oregon - making it the state's 125th most populous community.
Area ...
The 2010 Census shows that the sampling area for Irrigon has a total area of 1.44 square miles [3.7 km²]. Of this total, 1.29 square miles [3.4 km²] is land, with the balance (10.38%) being water (0.15 square miles [0.4 km²]).
Morrow County has a land area of 2,031 square miles [5,261.8 km²]. At 1.29 square miles [3.4 km²], Irrigon has 0.06% of the county's total land area.
- Continue Reading ...
- When the Census Bureau conducts a census for a city like Irrigon, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually 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 population, area and housing for Irrigon reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Irrigon might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
- 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: 45° 53' 42" (or 45.9°)
- Lon: -119° 29' 19" (or -119.49°)
- 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).
Housing Units ...
At the time of the 2010 Census, Irrigon had 640 Housing Units<3> and with its population of 1,826 people, this averages 2.85 people per Housing Unit.
- Continue Reading ...
- The 2010 Census shows Irrigon had a land area of 1.29 square miles [3.4 km²]. This translates to 442.9 Housing Units per square mile [171 housing units/km²].
- From the Census of 2000: Irrigon had 609 Housing Units, a population of 1,702 people and a land area of 1.24 square miles [3.2 km²]. This gives a density of 2.79 people per Housing Unit and 438 Housing Units per square mile [169.1 housing units/km²].
- Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 and the 2000 Census, there were changes in the sampling area for Irrigon 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).
Morrow County ...
The community of Irrigon is located in Morrow County<4>.
The county had a population of 11,173 people at the 2010 Census. With it's population of 1,826 people, Irrigon represented 16.34% of the county's total.
In addition, where the city of Irrigon has a population density of 1,263 people per square mile [487.9 people/km²], Morrow County averages 5.5 people per square mile [2.12 people/km²].
For more information, please visit our Census Page for Morrow County.
Census-to-Census Observations ...
Introduction ...
When the Census Bureau takes a census count (or enumeration) for Irrigon, 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 Irrigon. It's important to note that from one Census to the next, the shape and location of the polygon can change.
- Continue Reading ...
- Although we don't have specific information about the shape of the polygon for Irrigon or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
- If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.
Location ...
While generally coinciding with the GPS location (latitude/longitude) of Irrigon, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Irrigon.
- Continue Reading ...
- For the 2010 Census, the location was given as:
- Lat: 45.895048° (or 45°53'42" N)
- Lon: -119.488734° (or -119°29'19" W)
- For the 2000 Census, the location given was:
- Lat: 45.895884° (or 45°53'45" N)
- Lon: -119.492681° (or -119°29'33" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 1,046 feet to the east<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 (#2410115) to Irrigon. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Irrigon. The GNIS point has been mapped to the latitude/longitude:
- Lat: 45.896143° (or 45°53'46" N)
- Lon: -119.488540° (or -119°29'18" W)
- The GPS location given for the 2010 Census lies 402.2 feet to the south<6> of the point given by the GNIS for Irrigon. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Irrigon.
Miscellaneous Information for Irrigon ...
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 Morrow County or the city of Irrigon:
- The GNIS Codes ...
- The FIPS Codes ...
- An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
- State Code: 41 (Oregon)
- County Code: 049 (Morrow County)
- Place Code: 36500 (Irrigon)
- State & County Code: 41/049 (Oregon / Morrow County)
- State & Place Code: 41/36500 (Oregon / Irrigon)
- Misc. Census Codes ...
- Irrigon is located in Census Region #4 (the West Region) and Division #9 (the Pacific Division).
For more information about the various Federal identification codes, please visit our Misc Page for Irrigon.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Irrigon. If you can help, please contact us through our Feedback Page.
The official website for Morrow County: www.morrowcountyoregon.com/
The official website for State of Oregon: https://www.oregon.gov/
The official website of the U.S. Census Bureau
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 2019. |
| <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. |
| <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). |
| <4> | If you're interested in how the shape of Oregon's counties, including Morrow, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <5> | The calculated bearing (or angle) to the 2010 Census location is 253 degrees and a distance of 1,046 feet. |
| <6> | The calculated bearing (or angle) to the GNIS point is 172 degrees and a distance of 402.2 feet. |