[3] Name on the Register Image Date listed[4] Location City or town Description 1 John J. Aiken House John J. Aiken House February 20, 2013 (#13000025 ) 6805 Poverty Hill Rd. 42°18′00″N 78°41′01″W / 42.299881°N 78.683592°W / 42.299881; -78.683592 (John J. Aiken House ) Ellicottville 2 Allegany Council House Allegany Council House October 27, 2017 (#100001768 ) 8156 Old State Route 17 42°09′33″N 78°45′35″W / 42.159119°N 78.759819°W / 42.159119; -78.759819 (Allegany Council House ) Jimerson Town 3 Bank of Gowanda Bank of Gowanda May 25, 2001 (#01000553 ) 8 W. Main St. 42°27′45″N 78°56′10″W / 42.4625°N 78.936111°W / 42.4625; -78.936111 (Bank of Gowanda ) Gowanda 4 Beardsley-Oliver House Beardsley-Oliver House February 28, 2008 (#08000097 ) 312 Laurel Ave. 42°04′42″N 78°25′36″W / 42.078333°N 78.426667°W / 42.078333; -78.426667 (Beardsley-Oliver House ) Olean 5 Bedford Corners Historic District Bedford Corners Historic District July 5, 2003 (#03000590 ) NY 305 at Deer Creek and Dodge Creek Rds. 42°03′14″N 78°18′38″W / 42.053889°N 78.310556°W / 42.053889; -78.310556 (Bedford Corners Historic District ) Portville 6 Bryant Hill Cemetery Bryant Hill Cemetery July 5, 2003 (#03000605 ) Bryant Hill Rd. near Crane Rd. 42°18′19″N 78°36′07″W / 42.305278°N 78.601944°W / 42.305278; -78.601944 (Bryant Hill Cemetery ) Ellicottville 7 Cattaraugus Village Commercial Historic District Cattaraugus Village Commercial Historic District January 15, 2014 (#13001113 ) 9-52 Main, 1-17 Washington, 14 Waverly Sts. 42°19′47″N 78°52′04″W / 42.32977°N 78.867672°W / 42.32977; -78.867672 (Cattaraugus Village Commercial Historic District ) Cattaraugus Core of small village 8 Conklin Mountain House Conklin Mountain House November 19, 1998 (#98001386 ) 304 E. State St. 42°04′38″N 78°25′33″W / 42.077222°N 78.425833°W / 42.077222; -78.425833 (Conklin Mountain House ) Olean 9 East Otto Union School East Otto Union School September 15, 2004 (#04000993 ) 9014 East Otto-Springville Rd. 42°23′28″N 78°45′16″W / 42.391111°N 78.754444°W / 42.391111; -78.754444 (East Otto Union School ) East Otto 10 Ellicottville Historic District Ellicottville Historic District August 22, 1991 (#91001028 ) Roughly bounded by Elizabeth, Monroe, Martha and Adams Sts. 42°16′30″N 78°40′24″W / 42.2749°N 78.6732°W / 42.2749; -78.6732 (Ellicottville Historic District ) Ellicottville 11 Ellicottville Town Hall Ellicottville Town Hall April 3, 1973 (#73001166 ) Village Sq., NW corner of Washington and Jefferson Sts. 42°16′31″N 78°40′25″W / 42.2753°N 78.6736°W / 42.2753; -78.6736 (Ellicottville Town Hall ) Ellicottville 12 First Congregational Church of Otto First Congregational Church of Otto February 12, 1999 (#99000194 ) 9019 Main St. 42°21′19″N 78°49′40″W / 42.3553°N 78.8278°W / 42.3553; -78.8278 (First Congregational Church of Otto ) Otto 13 Gladden Windmill Gladden Windmill July 16, 1973 (#73001167 ) Pigeon Valley Rd. 42°14′07″N 78°53′44″W / 42.2353°N 78.8956°W / 42.2353; -78.8956 (Gladden Windmill ) Napoli 14 Gowanda Village Historic District Gowanda Village Historic District September 22, 1986 (#86002691 ) 37, 39, 41-45, 47-49, and 53 W. Main St. 42°27′47″N 78°56′12″W / 42.4631°N 78.9367°W / 42.4631; -78.9367 (Gowanda Village Historic District ) Gowanda 15 House at 520 Hostageh Road House at 520 Hostageh Road February 20, 2009 (#09000038 ) 520 Ho-Sta-Geh Road 42°00′53″N 78°28′17″W / 42.0147°N 78.4714°W / 42.0147; -78.4714 (House at 520 Hostageh Road ) Rock City 16 Jefferson Street Cemetery Jefferson Street Cemetery January 4, 2012 (#11000994 ) East side of Jefferson St. between Martha St. & Aspen Dr. 42°16′13″N 78°40′07″W / 42.2703°N 78.6686°W / 42.2703; -78.6686 (Jefferson Street Cemetery ) Ellicottville 17 Kimble-Nellé House Upload image June 16, 2021 (#100006643 ) 57 North Chapel St. 42°27′51″N 78°56′20″W / 42.4642°N 78.9390°W / 42.4642; -78.9390 (Kimble-Nellé House ) Gowanda 18 Leon Grange No. 795 Leon Grange No. 795 January 15, 2014 (#13001089 ) US 62 near Leon–New Albion Rd. 42°17′38″N 79°01′00″W / 42.2940°N 79.0166°W / 42.2940; -79.0166 (Leon Grange No. 795 ) Leon 19 Leon United Methodist Church Leon United Methodist Church November 22, 2000 (#00001413 ) Junction of Cattaraugus Co. 6 and U.S. Route 62 42°17′36″N 79°01′03″W / 42.2933°N 79.0175°W / 42.2933; -79.0175 (Leon United Methodist Church ) Leon 20 North Lyndon Schoolhouse North Lyndon Schoolhouse September 15, 2000 (#00000571 ) 7617 North Center Rd. 42°19′51″N 78°21′16″W / 42.3308°N 78.3544°W / 42.3308; -78.3544 (North Lyndon Schoolhouse ) Lyndon 21 Oak Hill Park Historic District Oak Hill Park Historic District December 1, 1997 (#97001495 ) Roughly along Laurens, N. Second, Third, Fourth, and W. Sullivan Sts. 42°04′50″N 78°26′04″W / 42.0806°N 78.4344°W / 42.0806; -78.4344 (Oak Hill Park Historic District ) Olean 22 Olean Armory Olean Armory March 2, 1995 (#95000080 ) 119 Times Sq. 42°04′41″N 78°25′43″W / 42.078056°N 78.428611°W / 42.078056; -78.428611 (Olean Armory ) Olean 23 Olean Public Library Olean Public Library July 11, 1985 (#85001498 ) 116 S. Union St. 42°04′36″N 78°25′50″W / 42.076667°N 78.430556°W / 42.076667; -78.430556 (Olean Public Library ) Olean 24 Olean School No. 10 Olean School No. 10 October 1, 2010 (#10000810 ) 411 W. Henley St. 42°04′32″N 78°26′04″W / 42.075556°N 78.434444°W / 42.075556; -78.434444 (Olean School No. 10 ) Olean 25 Park Square Historic District Park Square Historic District September 22, 1986 (#86002719 ) Park Square roughly bounded by N. Main, Pine, Chestnut, S. Main, Elm, and Church Sts. 42°20′14″N 78°27′27″W / 42.337222°N 78.4575°W / 42.337222; -78.4575 (Park Square Historic District ) Franklinville 26 Pfeiffer-Wheeler American Chestnut Cabin Pfeiffer-Wheeler American Chestnut Cabin January 11, 2002 (#01001436 ) Lillibridge Rd. 42°05′34″N 78°19′29″W / 42.092778°N 78.324722°W / 42.092778; -78.324722 (Pfeiffer-Wheeler American Chestnut Cabin ) Portville 27 Portville Free Library Portville Free Library November 7, 1991 (#91001671 ) 2 N. Main St. 42°02′20″N 78°20′25″W / 42.038889°N 78.340278°W / 42.038889; -78.340278 (Portville Free Library ) Portville 28 Randolph Historic District Randolph Historic District December 12, 2012 (#12001035 ) Junction of Main & Jamestown to Borden Sts. 42°09′49″N 78°58′50″W / 42.163594°N 78.980457°W / 42.163594; -78.980457 (Randolph Historic District ) Randolph 29 Simeon B. Robbins House Simeon B. Robbins House March 7, 2003 (#03000091 ) 9 Pine St. 42°20′16″N 78°27′23″W / 42.337778°N 78.456389°W / 42.337778; -78.456389 (Simeon B. Robbins House ) Franklinville 30 St. Stephen's Episcopal Church Complex St. Stephen's Episcopal Church Complex January 26, 2001 (#00001684 ) 109 S. Barry St. 42°04′36″N 78°25′40″W / 42.076667°N 78.427778°W / 42.076667; -78.427778 (St. Stephen's Episcopal Church Complex ) Olean 31 Salem Welsh Church Salem Welsh Church September 7, 1995 (#95001065 ) 11141 NY 98 at junction with Galen Hill Rd. 42°29′12″N 78°21′31″W / 42.486667°N 78.358611°W / 42.486667; -78.358611 (Salem Welsh Church ) Freedom 32 Temple B'Nai Israel Temple B'Nai Israel January 4, 2012 (#11000995 ) 127 S. Barry St. 42°04′35″N 78°25′39″W / 42.07625°N 78.427536°W / 42.07625; -78.427536 (Temple B'Nai Israel ) Olean 33 Union and State Streets Historic District Union and State Streets Historic District May 21, 2015 (#15000265 ) Roughly 101-133 N. Union, 110-114, 116 W. State & 102, 116, 120 S. Union Sts. 42°04′40″N 78°25′59″W / 42.077827°N 78.4329487°W / 42.077827; -78.4329487 (Union and State Streets Historic District ) Olean Intact core of downtown commercial area, with buildings from post-Civil War era to pre-World War II 34 US Post Office-Little Valley US Post Office-Little Valley May 11, 1989 (#88002344 ) 115 Main St. 42°14′57″N 78°47′55″W / 42.249167°N 78.798611°W / 42.249167; -78.798611 (US Post Office-Little Valley ) Little Valley 35 US Post Office-Olean US Post Office-Olean May 11, 1989 (#88002388 ) 102 S. Union St. 42°04′37″N 78°25′50″W / 42.076944°N 78.430556°W / 42.076944; -78.430556 (US Post Office-Olean ) Olean 36 William E. Wheeler House William E. Wheeler House January 11, 2002 (#01001435 ) 29 Maple Ave. 42°02′26″N 78°20′21″W / 42.040556°N 78.339167°W / 42.040556; -78.339167 (William E. Wheeler House ) Portville