Block
Port Jefferson, Ohio
15 topographic sheets cover this place, the earliest surveyed in 1913 and the latest in 1986. It stands in Salem Township. It lies in ZIP code area 45365. It stands on Counts Run. The Survey maps it on the Port Jefferson quadrangle. 308 people lived here at the 2020 count. It stands 971 feet above sea level.
Population over time
2 figuresPort Jefferson fell from 371 to 308 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 371 | |
| 2020 | 308 | -63 (-17%) |
Then and now
1913 to 1986The same ground, surveyed 73 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.
Topographic sheets covering this place
15 sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1913 USGS Sidney quadrangle1:62500
- 1913 USGS Sidney quadrangle1:62500
- 1944 USGS Sidney quadrangle1:62500
- 1953 USGS Muncie quadrangle1:250000
- 1953 USGS Muncie quadrangle1:250000
- 1953 USGS Muncie quadrangle1:250000
- 1953 USGS Muncie quadrangle1:250000
- 1953 USGS Muncie quadrangle1:250000
- 1956 USGS Muncie quadrangle1:250000
- 1961 USGS Port Jefferson quadrangle1:24000
- 1961 USGS Port Jefferson quadrangle1:24000
- 1961 USGS Port Jefferson quadrangle1:24000
- 1986 USGS Piqua quadrangle1:100000
- 1986 USGS Piqua quadrangle1:100000
- 1986 USGS Piqua quadrangle1:100000
In the county-history sources
18,336 words on this townshipHistory of Shelby County, Ohio, published 1883 names this settlement in its chapter on Salem Township. These are the passages that mention it, exactly as the scans read.
There is an abundance of gravel for road purposes. The township is well supplied with springs and streams. The south part is bordered by the Great Miami River; the east is crossed by Rum Creek; the central part by Counts' Run; along the extreme west is Plumb Creek; all of which empty into the Miami. These streams are all fed and supjiorted by springs. The system of gravelled roads is quite complete, there being not less than twenty-five miles of free pikes in the township.
Passage source: History of Shelby County, Ohio, published 1883.
Dingman that the first white settler in the township Was Charles Weeks, on section 20, on what is known as the Bryan farm. This settlement was made in 1810 or 1811. He built the first house and made the first improvement. The land was owned by Daniel Y. Dingman. These were followed by Jesse Jackson, Alex. Jackson, Elisha Kirtland, and Caleb Goble, who were ail here previous to the spring of 1818. In 1818 Adam Counts and Jacob Le Masters came. Fr6m 1818 to 1820 we find that Wm. Roberts, Samuel Taylor, George Morrison, Benj. Beden, Joseph Donaldson, and Wm. Skillen had settled here. The first log cabin was built by John Hathaway at the big spring where Ogden's store now stands. The first hewed log house was built by Alex. Jackson. The first frame house by John Johnston.
Passage source: History of Shelby County, Ohio, published 1883.
The town was named by Col. Jonathan Counts. There being another post-office in the State by the name of Port Jefferson, the P. O. at this place was named Pratt, after Dr. Pratt of Sidney. The first P. M. was Alex. Jackson. The mail was carried on horseback from Sidney to Marysville, Union County.
Passage source: History of Shelby County, Ohio, published 1883.
Machine-read from a century-old scan, so expect the errors a machine makes: misspelled names, dropped words, stray characters.
Read the whole chapter on Salem Township - it names this place 25 more 25 times.
Specimens collected near this place
12 of 204 shownRegional context, not property-specific evidence. Museums hold 204 specimens collected within 10 miles of Port Jefferson between 1897 and 1967: 165 Animalia, 21 Fungi, 17 Plantae, 1 Unrecorded. 12 distinct Species records are shown. Collected by A. R. Gaufin, A.R. Gaufin, A.R. Gaufin, H.H. Ross and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.
| Image | Species | Year | Collected by | Where, as recorded |
|---|---|---|---|---|
 | Sorghum Moench | 1897 | Kellerman, W.A. | Shelby Co., Ohio. |
 | Diphasiastrum digitatum (Dill. ex A.Braun) Holub | 1902 | Grover, F.O. | Opens woods, N. Amherst, near F & D Quarry |
 | Fusconaia flava (Rafinesque, 1820) | 1939 | not recorded | Miami River |
| unnamed | 1897 | WA Kellerman | Shelby County | |
 | Carex shortiana Dewey & Torr. | 1897 | Wetzstein, A. | |
 | Cercosporina apii (Fresen.) Miura | 1897 | Selby A. D. | Kirkwood |
| Sorosporium reilianum (J.G.Kühn) McAlpine | 1897 | W. A. Kellerman | ||
 | Sphacelotheca reiliana (J.G.Kühn) G.P.Clinton | 1897 | Kellerman W. A. | Shelby Co. |
 | Ustilago reiliana J.G.Kühn | 1897 | Kellerman, W.A. | Shelby County, Ohio. |
 | Accipiter cooperii (Bonaparte, 1828) | 1904 | Henninger, W. F. (Walther Frederick) | New Bremen, Shelby, Ohio, USA |
 | Hirneola auricula-judae (Bull.) Berk. | 1909 | Fisher G. Clyde | Sidney |
 | Gymnosporangium juniperi-virginianae Schwein. | 1914 | Russell A. B. | Sidney |
All 204 specimens within 10 miles, at the Global Biodiversity Information Facility.
Mines and quarries near this place
2 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Port Jefferson: 1 unknown, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Port Jefferon Quarry | Sand and Gravel, Construction | Producer | ||
| Staley Farm Quarry | Sand and Gravel, Construction | Unknown |
Storms near this place
20 since 1994Regional context, not property-specific evidence. The National Weather Service names Port Jefferson in 20 storm reports between 1994 and 2025: 14 thunderstorm wind, 3 hail, 2 flood, 1 tornado. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| September 2003 | Thunderstorm Wind | Port Jefferson | $150,000 | A strong microburst caused damage to homes across the eastern part of the county. One house was blown off of its foundation, and several others sustained major damage. Numerous trees were downed across the area. Maximum wind speeds were estimated between 100 and 120 mph. |
| May 2019 | Thunderstorm Wind | Port Jefferson | $5,000 | Trees and power lines were downed at the intersection of State Route 47 and Herring Road. |
| June 2001 | Thunderstorm Wind | Port Jefferson | $5,000 | A morning thunderstorm (time estimated) knocked down large limbs and a tree. The tree fell on a home causing damage. |
| August 1994 | Thunderstorm Wind | Port Jefferson | $5,000 | Trees were downed. |
| July 2008 | Thunderstorm Wind | Port Jefferson | $4,000 | Six large trees and numerous large limbs were knocked down. Several streets in town were blocked by fallen tree debris. |
| January 2018 | Thunderstorm Wind | Port Jefferson | $3,000 | Several trees were downed near the intersection of Pence Road and Baker Road. |
| July 2008 | Thunderstorm Wind | Port Jefferson | $3,000 | Trees and power lines were downed. |
| May 1995 | Thunderstorm Wind | Port Jefferson | $3,000 | Large trees reported downed. |
| July 2016 | Thunderstorm Wind | Port Jefferson | $2,000 | A tree fell on a power line in the 9000 block of Pasco Montra Road. |
| May 2015 | Thunderstorm Wind | Port Jefferson | $2,000 | Several trees and large branches were downed. |
| August 2007 | Thunderstorm Wind | Port Jefferson | $2,000 | Two trees were downed. |
| June 2000 | Tornado (F0) | Port Jefferson | $2,000 | A tornado made a brief touchdown near the intersection of routes 47 and 65. A few trees were knocked down. |
| April 2025 | Thunderstorm Wind | Port Jefferson | $1,000 | A tree was downed in the 10000 block of Lochard Road. |
| June 2013 | Thunderstorm Wind | Port Jefferson | $1,000 | A large tree was downed in Port Jefferson due to thunderstorm winds. |
| June 2008 | Hail | Port Jefferson | $1,000 | no account filed |
| June 2020 | Thunderstorm Wind | Port Jefferson | $500 | A 10 inch diameter healthy branch was snapped off of a tree. |
| November 2017 | Flood | Port Jefferson | - | High water was reported on several roads across Shelby County. |
| July 2017 | Flood | Port Jefferson | - | A few inches of water was reported over State Route 47. |
| July 2014 | Hail | Port Jefferson | - | no account filed |
| May 2014 | Hail | Port Jefferson | - | no account filed |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Pasco | 3.1 miles | 15 | |
| Pemberton | 4.0 miles | 15 | |
| Sidney | 4.5 miles | 15 | |
| Buckeye Terrace | 4.7 miles | 15 | |
| Swanders | 4.7 miles | 15 | |
| Maplewood | 4.9 miles | 15 | |
| Lakeside Village | 5.4 miles | 15 | |
| Anna | 6.2 miles | 15 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Port Jefferson | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2475960 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1061565. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.