Welcome to Onslow ...
The city of Onslow is located in Jones County<1>.
The location of Onslow has been provided by the Geographic Names Information System (ie- the GNIS).<2>
While we don't have a date for the founding of Onslow, you might consider that their post office opened in 1871.
From the Census Estimates for 2019, Onslow has a population of 193 people<3> (see below for details).
Onslow is 910 feet [277 m] above sea level.<4>.
Time Zone: Onslow lies in the Central Time Zone (CST/CDT) and observes daylight saving time
Onslow is within the boundaries of the (563) area code.
The ZIP code for Onslow: 52321<5>
Population Details ...
Taken from the 2019 Census Estimates, Onslow had an population of 193 people. This is a decrease of 2.03% since the 2010 Census (or a decrease of 13.45% since the 2000 Census).
At the time of the 2010 Census, Onslow had a population of 197 people. This makes Onslow the county's 7th most populous community.
With a 2010 count of 197 people, the population of Onslow decreased 11.66% from the 2000 Census (which had a count of 223 people).
More information can be found on the Census Page for Onslow.
Communities Also Named Onslow ...
Using our Gazetteer, we found that there are 4 communities that are also named Onslow - they are located in Nova Scotia, Ohio, Ontario and Washington.
For more information, see our Tidbits & Trivia Page for Onslow.
Communities near Onslow ...
We have created a list of 10 communities that are near Onslow.
- Maquoketa
(18 miles [29 km] to the east)- Jump to our Gazetteer entry for Maquoketa
- Maquoketa is located in Jackson County
- Population from the 2020 Census: 5,924 people
- Jump to TripAdvisor's Tourism page for Maquoketa <6>
- Anamosa
(13 miles [20.9 km] to the west)- Note: The GPS coordinates that we are using for Anamosa have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Anamosa
- Anamosa is located in Jones County
- Population from the 2020 Census: 5,545 people
- Jump to TripAdvisor's Tourism page for Anamosa <6>
- Monticello
(12 miles [19.3 km] to the northwest)- Note: The GPS coordinates that we are using for Monticello have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Monticello
- Monticello is located in Jones County
- Population from the 2020 Census: 3,873 people
- Jump to TripAdvisor's Tourism page for Monticello <6>
- Cascade
(13 miles [20.9 km] to the north)- Jump to our Gazetteer entry for Cascade
- Cascade is located in Dubuque County
- Population from the 2020 Census: 2,350 people
- Jump to TripAdvisor's Tourism page for Cascade <6>
- Mechanicsville
(18 miles [29 km] to the southwest)- Jump to our Gazetteer entry for Mechanicsville
- Mechanicsville is located in Cedar County
- Population from the 2020 Census: 1,116 people
- Clarence
(15 miles [24.1 km] to the south)- Jump to our Gazetteer entry for Clarence
- Clarence is located in Cedar County
- Population from the 2020 Census: 965 people
- Jump to TripAdvisor's Tourism page for Clarence <6>
- Lowden
(17 miles [27.4 km] to the south)- Note: The GPS coordinates that we are using for Lowden have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Lowden
- Lowden is located in Cedar County
- Population from the 2020 Census: 761 people
- Jump to TripAdvisor's Tourism page for Lowden <6>
- Olin
(9 miles [14.5 km] to the southwest)- Note: The GPS coordinates that we are using for Olin have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Olin
- Olin is located in Jones County
- Population from the 2020 Census: 683 people
- Jump to TripAdvisor's Tourism page for Olin <6>
- Stanwood
(16 miles [25.7 km] to the southwest)- Jump to our Gazetteer entry for Stanwood
- Stanwood is located in Cedar County
- Population from the 2020 Census: 650 people
- Jump to TripAdvisor's Tourism page for Stanwood <6>
- Oxford Junction
(9 miles [14.5 km] to the south)- Note: The GPS coordinates that we are using for Oxford Junction have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Oxford Junction
- Oxford Junction is located in Jones County
- Population from the 2020 Census: 480 people
To Help With Your Genealogy Research ...
We have a couple of sections for those tracing their genealogy.
We created a list of cemeteries that are in the area around Onslow. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Onslow.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Onslow. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Onslow.
We also have a detailed list of newspapers that have been published in the area around Onslow. See our Newspapers Page for Onslow.
TripAdvisor Tourism Pages for Onslow ...
Looking for more information about Onslow? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.
In addition to the Tourism page for Onslow, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Onslow.
Adding Onslow to Our Gazetteer ...
We originally found mention of Onslow in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.
From our notes, the earliest published mention we've found for Onslow was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>
From that list, the Onslow post office opened in 1871.
We also found Onslow in the book titled Business Atlas and Shippers' Guide (1895).
For more details, see References and Mentions for Onslow.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Onslow. If you can help, please contact us through our Feedback Page.
The official website for Jones County: www.co.jones.ia.us/
The official website for State of Iowa: https://www.iowa.gov/
Footnotes ...
| <1> | If you're interested in how the shape of Iowa's counties, including Jones, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required. |
| <3> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Onslow. |
| <4> | The elevation is an estimate for the area around Onslow - it will be higher in some places and lower in others. |
| <5> | ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Onslow). When looking for a ZIP Code, whether Onslow or elsewhere, it's always best to check the website of the United States Postal Service (USPS). |
| <6> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
| <7> | A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/ |