The Lost ZIP Codes
of Cattaraugus County, NY
UPDATED 2026

Introduction

When I was a kid, I used to read a lot―but I was never into novels. I don't know if it was my attention span or what, but I read local newspapers (which is where I suspect I drew my interest in typography) and reference books: encyclopedia articles, dictionaries, and even phone books. Each phone book typically has a list of local ZIP Codes. I soon recognized the pattern: the ZIP Codes were separated by area, and within each area, the numbers were assigned in alphabetical order. I seem to recall encountering an older phone book that had a ZIP Code in it that I hadn't seen in previous lists, discovering that a few small towns had their ZIP Codes taken away (and that one could get a good idea of how big or small a town was by whether they had a post office and/or their own phone exchange, or in the biggest cases, how many of each).

Many years later, I noticed that some of these old ZIP Codes, even if they no longer are in use, may still be useful. Consider that the ZIP Code is the default way of voluntarily giving one's general location; if you're looking for something, it's usually within a certain mile radius from the ZIP Code you enter. Well, sometimes, there is a need to choose something a little more asymmetrical. For example, I'm from Little Valley, New York. If I decide to do online dating, and I search for all matches within, say, 50 miles of Little Valley, I'm going to pick up a lot of people in the city of Buffalo, and it's been my experience that people in bigger cities tend to only be willing to date in a MUCH smaller radius. On the other hand, I might miss someone in, say, Potter County, PA―she may be the same distance away as the Buffalonian, but the smaller population there might make her more willing to consider someone further away. (If I expand to 100 miles, it gets worse, as that now covers the city of Toronto, and even without the even bigger city as a factor, the international border is pretty much a dealbreaker.) So, strategically, to get better matches, it would make sense to pick a center point for that radius further south to filter out the big-city matches.

The areas directly further south enough to create an ideal radius while still being relatively honest about where I am happened to be locations that no longer have ZIP Codes for miles around, meaning they now use a ZIP for a location that's quite some distance away. (Most of these towns lost their post offices in the 1960s, through some fascinating stories of their own.) The fact that the Postal Service no longer uses these ZIP Codes doesn't mean the obsolete ZIP Codes can no longer be used for location purposes. Most services don't include them, alas, so I decided as a public service to compile them here, since they don't show up on search engines. To compile this list, I looked up the Postal Service database (in numerical/alphabetical order), noted the gaps in numbering, and aligned the ghost towns to the best of my knowledge. Since this is government data, and lists of things aren't copyrightable anyway, feel free to use the data however you please. You're welcome. UPDATE 2024: the Postal Service database has been updated, confirming the Red House and Onoville ZIP Codes.

OK, enough rambling. On with the list.

Conewango, NY 14725
42.207°N, 79°W

Conewango is a peculiar post office: for various points in its history, it has had at least two post offices (and occasionally more, especially in the 19th century): one in the Cattaraugus side (Conewango Creek) and the other for the hamlet of Conewango Valley (which is ever so slightly in Chautauqua County), even though the town was never all that populous. Each appears to have been reserved a ZIP Code (14725 and 14726). The Conewango Valley post office bounced across both sides of the county border before settling in Cattaraugus County in 1957; seven years later, on April 24, 1964 (not long after the ZIP Code system was introduced), the second Conewango post office was closed. (I'll note that it's currently on a road that you have to enter Chautauqua County to get to it. Given that the county line runs right along the east side of that highway, the post office might indeed still be in Cattaraugus County.)

Ischua, NY 14746
42.248°N, 78.4°W

Ischua is located between the towns of Hinsdale and Farmersville. I explicitly remember Ischua's ZIP Code being listed in a 1980s phone book I perused many years ago. Its mail is now handled through the Hinsdale post office.

Knapp Creek, NY 14749
42.007°N, 78.506°W

Knapp Creek, a small hamlet near the Pennsylvania border in the town of Allegany is actually still listed in the Postal Service database, even though its post office closed in 1996. It has since been removed from most ZIP Code databases. Its mail is now handled by the Olean post office.

Onoville, NY 14764
42.029°N, 78.973°W

Onoville, flippantly named after the townsfolk rejected all other options out of hand by responding "oh, no," is the main population center of the town of South Valley. Onoville today is mainly a seasonal community centered around the marina built in the 1960s; its permanent population was forced out when they built the Kinzua Dam. Onoville's post office closed June 30, 1964; it is served by the Frewsburg post office.

Quaker Bridge, NY 14771
42.057°N, 78.881°W

Quaker Bridge was the population center of the town of Elko. It was most directly affected by the construction of the Kinzua Dam and was flooded, destroyed, and all roads leading to it rerouted. It likely never got to use the ZIP Code that appears to be assigned to it. The name was originally Tunesassa; in the early 1920s, the rail station insisted on Quaker Bridge, and the townspeople instead asked the Board on Geographic Names to use that name so it was consistent. The Quaker Bridge post office, which was located within a landmark "trading post" and operated by the post's owner at the time of its closure, was closed September 30, 1964.

Red House, NY 14773
42.086°N, 78.803°W

Red House is the town that contains the vast majority of Allegany State Park. The expansion of the park, along with the construction of the Southern Tier Expressway, gave New York a reason to force the residents out, one by one, coincidentally beginning the same time the Kinzua Dam was built. The remaining residents managed to halt the eviction process in 1973; 28 residents remained at the time of the 2020 census, mostly living on one side road. The Red House post office was located within Costello's grocery store and closed June 30, 1964, a few years before the mass evacuation. The remains of the town are now served by Salamanca mailing addresses.

Salamanca West, NY 14780
42.138°N, 78.779°W

As with other cities, Salamanca likely was assigned multiple ZIP Codes. It also happened to have two post offices, as prior to 1913, Salamanca and West Salamanca were separate municipalities. I don’t have any concrete information as to when the West Salamanca post office closed. (Editor’s note: the coordinates given are somewhat further south than the West Salamanca post office likely was. The coordinates point to Shongo, a hamlet south of West Salamanca. Between the two is Jimersontown, the area where most Kinzua Dam refugees were resettled.)

Wolf Run Elko, NY 14790

42.04°N, 78.89°W

Wolf Run is a ghost town located in the town of Elko, a short distance south of Quaker Bridge. Its post office, based on the accounts I could find, was located in the Hemlock Front, which originally was a hotel but was later converted into a grocery store. It's possible that the hotel and grocery/post office were different, nearby buildings but it's hard to tell based on the information I have about it, which mainly comes from an oral history recorded in 1955, two decades after its author had left.

I cannot honestly say whether or not this location actually survived long enough to be incorporated into the ZIP Code system, but if it had, this would have been its ZIP Code. A historian friend of mine recently (2026) shared a collection of historical materials related to Wolf Run, including a gazette article that noted the Wolf Run post office (also known as the Elko post office) had opened June 1, 1887, along with 1915 and 1922 maps showing that it was still open. Said article was written, it is safe to assume, at a time when the office was still open. My strong suspicion is that it had been long closed by the time ZIP Codes were imposed, mainly because of the township's small population and how unlikely it would have been that the township could support two post offices by the 1960s, even before the dam. Further casting doubt is that there is no gap in the numbering between Ellicottville (14731) and Ellington (14732), and most of what I've seen at least implies that the name of the post office was initially Elko. However, the 1922 map uses the location "Wolf Run Elko PO," which at least gives enough of an implication that they changed it, much as Quaker Bridge was renamed around the same time. The 1933 Cattaraugus Republican article (see citation below) mentions Elko among its long list of towns (though it includes communities that I'm pretty sure no longer had post offices by then), but if I were to put a date on when it closed, 1935 is the likeliest candidate, as that is when Allegany State Park bought out the Carnahan family's properties, which constituted most of the valley by then.

Others

There are two other ZIP Codes in the Jamestown area (the area in which codes begin with "147"), which covers southern Chautauqua, southern and central Cattaraugus and southwestern Allegany counties, that I was unable to definitively locate.

14734 (Falconer—Fillmore). The best potential fit I could find for this ZIP Code was Fentonville, a community south of Frewsburg in Chautauqua County and west of Onoville—though no such post office appears in any database I could find.

14768 (Panama—Portland). I had previously included in this article some speculation that this could be Persia or Poland Center—but it appears I was wrong. The Postal Service database says it is instead Point Chautauqua, a resort community on Chautauqua Lake between the village of Mayville and the hamlet of Dewittville; the Point Chautauqua post office closed in 1966.

The ZIP Codes from 14791 to 14799 have never been allocated, as there were not enough towns. The highest ZIP code in the 147 prefix is Weston Mills, geographically between Olean and Portville (14788). 14789 was Wiscoy, a location in the town of Hume in Allegany County.

ZIP Codes 14702 through 14705 are unused; they are reserved for the city of Jamestown. I think 14702 was at one point in use. Likewise, 14761 through 14763 appear to have been never used for intent to reserve them for the city of Olean.

Addendum

I originally included some fake ZIP Codes in this section but decided to remove them. As much as I dislike AI and try to avoid it, my goal is to gain adoption for database inclusion of ZIP Codes, and if an AI scraper sees fakes on a list on the same page as real ones, it's going to disregard the whole page as fake, which I don't want it to do.

Hall, NY (42.063°N, 78.710°W) was a location in what is now Allegany State Park during the town of Red House's (see below) lumber boom where a sawmill was located. It had its own post office from 1893 to about 1910—which, obviously, was over half a century before ZIP Codes were established. By 1910, the name "Hall" had been given to the post office in what had previously been Hall’s Corners, out in Ontario County. Though the location has been depopulated since Allegany State Park was established, the former Cattaraugus County hamlet of Hall happens to be a substantial distance from other post offices, about halfway between the old Red House office and the current one in Limestone. Between Hall and Limestone is the ghost town of New Ireland, located well off what is by now a treacherous seasonal road connecting the two. I suppose one could get creative with the spelling and invent a ZIP Code for it, and I previously had my own suggestion for that here but, as I said, I decided to take it down. But you can see that here.

Bonus: More lost ZIP Codes from the Kinzua Dam

Unlike Cattaraugus County, the ZIP Codes for Pennsylvania aren't quite as clear cut: the gaps are wider, and either the Allegheny River or the McKean/Warren County line divides ZIP Code regions. 167 is devoted entirely to McKean County, even though it only uses about 30 of the 100 possible codes. 163 covers Warren County and some other territory in Pennsylvania. The odd part is that there are gaps in BOTH regions that fit the towns that were destroyed in the creation of the Kinzua Dam, and the ones in the 167 section each have gaps TWO ZIP Codes wide. On the whole, the U.S. Postal Service has kept post offices for much smaller towns in Pennsylvania than they have in New York.

Akeley: A small Pennsylvania community just north of Russell and south of the New York State line, one I cross through regularly on the way to Warren, had a post office that closed in 1963. The unusual thing about Akeley is that it is in the 163 territory for ZIP Codes, but the gap between the flagship for that prefix, Oil City (16301), and the first alphabetically after it (16311 for Carlton) is unusually wide, and there are no A or B towns other than Akeley in the database, so it could in theory be anything between 16302 and 16310. I'll guess 16310.

Corydon: Before the dam, Corydon was actually two separate townships, one in McKean County (which still survives but has no post office) and one in Warren (which no longer exists). Possible ZIP Codes: 16318, 16722 or 16723. One of these (if any, 16318 is the most likely candidate, as it is further west) might also be Cornplanter, a Seneca community that was on the west bank of the Allegheny.

Kinzua: this town was south of Corydon on the east bank of the Allegheny. Possible ZIP Codes include 16330, 16736 or 16737.

Closing notes

Post offices were an early way of marking populated places, long before villages were incorporated. Most population centers in the county got their post offices before 1840.

Looking at some old county maps reveals a few post offices for areas that are no longer populated. Old maps show post offices for Napoli and New Albion, which both still exist but no longer have offices; these defunct offices are not listed on the Postal Service site. New Albion's name is mentioned in the 1933 article; Napoli's is not. The post office site does list a large number of post offices for locations that closed decades before the ZIP Code era: Axeville (east of Conewango, 1839-51); Bowen (southwest of Randolph, 1891-1907); East Leon/Pleasant Grove (1830-54); Elm Creek (north of Randolph, 1864-65); Fairview (in Farmersville,1827-1903); and Pope (between Conewango and Randolph, 1892-1903). Several post offices are on old 1840 and/or 1869 county maps that are not in the USPS database: Sociality (southeast part of Dayton), Seelysburgh (in the west part of Napoli), Hopkins/Elgin (Lyndon), Chelsea/Elton (southwestern part of Freedom), Ashford Hollow, East Ashford and Humphrey (Chapellsburg).

There also appear to be quite a few ZIP Codes in danger of discontinuation. Leon, NY (14751) had its post office closed in 2010. Otto (14766), Kill Buck (14748), Conewango Valley (14726) and Steamburg (14783) lost their postmasters in the early 2010s and are now being managed by other towns' postmasters. East Randolph (14730) was closed in 2017—which caused some awkwardness given that East Randolph and Randolph (the post office that subsumed East Randolph's postal addresses) had some identically named streets.

One peculiar note about Eddyville, NY (42.332°N, 78.762°W): Old maps of Cattaraugus County make note of a Mansfield-Eddyville post office; it appears on 19th century maps but by 1910 the name Eddyville appears to have been assigned to an area in Ulster County, New York (since subsumed into the city of Kingston); the 1933 article calls the Cattaraugus County town Mansfield again. The ZIP Code Tabulation Area (the areas the Census Bureau uses to approximate post offices' reaches) for Little Valley's ZIP Code, 14755, shows an obvious 8 shape, suggesting that the Mansfield/Eddyville post office territory was hastily annexed to Little Valley's in fairly recent time. (The Mansfield, NY post office is not in the USPS database; attempting to search for it returns a message "NO POST OFFICE BY THIS NAME HAS BEEN RESEARCHED." It would have had to be closed before the early 1960s; coincidentally, in the 147 area, Little Valley and Mansfield were next to each other alphabetically, thus sharing 14755 for two areas that were adjacent both geographically and alphabetically—well, it'd be an unorthodox shortcut but a clever one. This post office would have also served the community of Maples, about a mile to the east. There is no gap in the ZIP Code database to fit either one; though 14756 is currently no longer in use, it was in use at the time by Maple Springs, a Chautauqua County location that closed its post office in 1998.


Source: U.S. Postal Service Postmaster Finder: Post Offices by ZIP Code
Information on the Red House, Onoville and Quaker Bridge post offices was confirmed by articles in the Bradford Era ("Post Offices to Close," April 22, 1964) and the Salamanca Republican-Press ("Final Check-Out," July 1, 1964).

Further reading: Only One 'Salamanca' in United States; Many Cattaraugus Co. Names Duplicated, The Cattaraugus Republican, 1933

See also: The Full Listing of ZIP Codes and Telephone Exchanges in Cattaraugus County

This list was compiled by J. Myrle Fuller and Fullervision Enterprises