what is the number of listings from barrington, farmington, and rochester combined?
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col :  | name on the register | date listed | location | city or town | summary row 1 : 1 | back river farm | june 22, 1984\n(#84003236) | bay view rd.\n43°08′21′′n 70 | dover |  row 2 : 2 | canaan chapel | march 11, 1982\n(#82001877) | canaan rd.\n43°12′09′′n | barrington |  row 3 : 5 | farmington town pound | september 2, 1993\n(#93000884) | northwestern side of pound rd. 300 ft (91 | farmington |  row 4 : 9 | garrison hill park and tower | september 11, 1987\n(#87001413) | abbie sawyer memorial dr.\n43°12′34′′ | dover |  row 5 : 10 | green street school | march 7, 1985\n(#85000481) | 104 green st.\n43°15′23′′n 70 | somersworth |  row 6 : 11 | william hale house | november 18, 1980\n(#80000309) | 5 hale st.\n43°11′36′′n 70 | dover |  row 7 : 12 | richard hayes house | february 27, 1986\n(#86000283) | 184 gonic rd.\n43°15′38′′ | rochester |  row 8 : 13 | jenness farm | march 2, 2001\n(#01000206) | 626 pickering rd.\n43°14′36 | rochester |  row 9 : 14 | lehoullier building | december 26, 1979\n(#79000211) | 161-169 main st.\n43°15′31′′ | somersworth |  row 10 : 15 | milton town house | november 26, 1980\n(#80000311) | nh 125 and town house rd.\n43°26 | milton |  row 11 : 18 | plumer-jones farm | march 23, 1979\n(#79000212) | north of milton on nh 125\n43°27′44 | milton |  row 12 : 19 | plummer homestead | june 14, 2002\n(#02000638) | 1273 white mountain highway\n43°27′35′′n 70 | milton |  row 13 : 20 | public market | march 7, 1985\n(#85000541) | 93 washington st.\n43°11′43′′n 70 | dover |  row 14 : 21 | queensbury mill | april 10, 1987\n(#86003362) | 1 market st.\n43°15′54′′n 70° | somersworth |  row 15 : 22 | michael reade house | february 12, 1980\n(#80000314) | 43 main st.\n43°11′50′′n 70° | dover |  row 16 : 23 | religious society of friends meetinghouse | february 29, 1980\n(#80000421) | 141 central ave.\n43°11′12′′n 70 | dover |  row 17 : 24 | rochester commercial and industrial district | april 8, 1983\n(#83001154) | n. main, wakefield, hanson, and s. main st | rochester |  row 18 : 25 | rollinsford town hall | march 5, 1999\n(#99000268) | 667 main st.\n43°14′08′′n 70 | rollinsford |  row 19 : 26 | st. thomas episcopal church | june 7, 1984\n(#84003241) | 5 hale st.\n43°11′37′′n 70 | dover |  row 20 : 27 | salmon falls mill historic district | february 29, 1980\n(#80000315) | front st.\n43°14′10′′n 70°49 | rollinsford |  row 21 : 32 | strafford union academy | september 22, 1983\n(#83001155) | nh 126 and nh 202a\n43°16 | strafford |  row 22 : 33 | gen. john sullivan house | november 28, 1972\n(#72000089) | 23 newmarket rd.\n43°07′48′′n | durham | home of american revolutionary war general john sullivan, elected president of new
what is the number of listings from barrington, farmington, and rochester combined?
Name on the Register Date listed Location City or town Summary
1 Back River Farm June 22, 1984\n(#84003236) Bay View Rd.\n43°08′21″N 70°51′16″W﻿ / ﻿43.139167°N 70.854444°W Dover
2 Canaan Chapel March 11, 1982\n(#82001877) Canaan Rd.\n43°12′09″N 71°06′04″W﻿ / ﻿43.2025°N 71.101111°W Barrington
3 County Farm Bridge May 21, 1975\n(#75000237) Northwest of Dover on County Farm Rd.\n43°13′14″N 70°56′38″W﻿ / ﻿43.220556°N 70.943889°W Dover Over Cocheco River
4 Durham Historic District May 31, 1980\n(#80000308) Main St. and Newmarket Rd.\n43°07′47″N 70°55′10″W﻿ / ﻿43.129722°N 70.919444°W Durham
5 Farmington Town Pound September 2, 1993\n(#93000884) Northwestern side of Pound Rd. 300 ft (91 m) north of the junction of Ten Rod Rd.\n43°21′33″N 71°04′49″W﻿ / ﻿43.359167°N 71.080278°W Farmington
6 First Parish Church March 11, 1982\n(#82001696) 218 Central Ave.\n43°10′56″N 70°52′27″W﻿ / ﻿43.182222°N 70.874167°W Dover
7 First Parish Church Site-Dover Point May 27, 1983\n(#83001153) Dover Point Rd.\n43°08′26″N 70°50′21″W﻿ / ﻿43.140556°N 70.839167°W Dover
8 Free Will Baptist Church November 13, 1980\n(#80000310) Ridge Top Road\n43°23′59″N 71°09′33″W﻿ / ﻿43.399722°N 71.159167°W New Durham
9 Garrison Hill Park and Tower September 11, 1987\n(#87001413) Abbie Sawyer Memorial Dr.\n43°12′34″N 70°52′13″W﻿ / ﻿43.209444°N 70.870278°W Dover
10 Green Street School March 7, 1985\n(#85000481) 104 Green St.\n43°15′23″N 70°51′50″W﻿ / ﻿43.256389°N 70.863889°W Somersworth
11 William Hale House November 18, 1980\n(#80000309) 5 Hale St.\n43°11′36″N 70°52′29″W﻿ / ﻿43.193376°N 70.874858°W Dover
12 Richard Hayes House February 27, 1986\n(#86000283) 184 Gonic Rd.\n43°15′38″N 70°58′44″W﻿ / ﻿43.260556°N 70.978889°W Rochester
13 Jenness Farm March 2, 2001\n(#01000206) 626 Pickering Rd.\n43°14′36″N 70°56′12″W﻿ / ﻿43.243333°N 70.936667°W Rochester
14 Lehoullier Building December 26, 1979\n(#79000211) 161-169 Main St.\n43°15′31″N 70°51′46″W﻿ / ﻿43.258611°N 70.862778°W Somersworth
15 Milton Town House November 26, 1980\n(#80000311) NH 125 and Town House Rd.\n43°26′27″N 70°59′05″W﻿ / ﻿43.440833°N 70.984722°W Milton
16 New Durham Meetinghouse and Pound December 8, 1980\n(#80000312) Old Bay Rd.\n43°25′25″N 71°07′42″W﻿ / ﻿43.423611°N 71.128333°W New Durham
17 New Durham Town Hall November 13, 1980\n(#80000313) Main St. and Ridge Rd.\n43°26′02″N 71°09′55″W﻿ / ﻿43.433889°N 71.165278°W New Durham
18 Plumer-Jones Farm March 23, 1979\n(#79000212) North of Milton on NH 125\n43°27′44″N 70°59′37″W﻿ / ﻿43.462222°N 70.993611°W Milton
19 Plummer Homestead June 14, 2002\n(#02000638) 1273 White Mountain Highway\n43°27′35″N 70°59′33″W﻿ / ﻿43.459722°N 70.9925°W Milton
20 Public Market March 7, 1985\n(#85000541) 93 Washington St.\n43°11′43″N 70°52′31″W﻿ / ﻿43.195278°N 70.875278°W Dover
21 Queensbury Mill April 10, 1987\n(#86003362) 1 Market St.\n43°15′54″N 70°51′58″W﻿ / ﻿43.265°N 70.866111°W Somersworth
22 Michael Reade House February 12, 1980\n(#80000314) 43 Main St.\n43°11′50″N 70°52′21″W﻿ / ﻿43.197222°N 70.8725°W Dover
23 Religious Society of Friends Meetinghouse February 29, 1980\n(#80000421) 141 Central Ave.\n43°11′12″N 70°52′25″W﻿ / ﻿43.186667°N 70.873611°W Dover
24 Rochester Commercial and Industrial District April 8, 1983\n(#83001154) N. Main, Wakefield, Hanson, and S. Main Sts. and Central Square\n43°18′11″N 70°58′34″W﻿ / ﻿43.303056°N 70.976111°W Rochester
25 Rollinsford Town Hall March 5, 1999\n(#99000268) 667 Main St.\n43°14′08″N 70°49′17″W﻿ / ﻿43.235556°N 70.821389°W Rollinsford
26 St. Thomas Episcopal Church June 7, 1984\n(#84003241) 5 Hale St.\n43°11′37″N 70°52′30″W﻿ / ﻿43.193611°N 70.875°W Dover
27 Salmon Falls Mill Historic District February 29, 1980\n(#80000315) Front St.\n43°14′10″N 70°49′05″W﻿ / ﻿43.236111°N 70.818056°W Rollinsford
28 Sawyer Building May 23, 1980\n(#80000316) 4-6 Portland St.\n43°11′48″N 70°52′21″W﻿ / ﻿43.196667°N 70.8725°W Dover
29 Sawyer Woolen Mills September 13, 1989\n(#89001208) 1 Mill St.\n43°10′44″N 70°52′35″W﻿ / ﻿43.178889°N 70.876389°W Dover
30 Smith Chapel February 13, 2013\n(#13000009) 45 Mill Pond Rd.\n43°07′42″N 70°55′27″W﻿ / ﻿43.128355°N 70.924292°W Durham
31 Strafford County Farm February 25, 1981\n(#81000100) County Farm Rd.\n43°13′03″N 70°56′31″W﻿ / ﻿43.2175°N 70.941944°W Dover
32 Strafford Union Academy September 22, 1983\n(#83001155) NH 126 and NH 202A\n43°16′07″N 71°07′23″W﻿ / ﻿43.268611°N 71.123056°W Strafford
33 Gen. John Sullivan House November 28, 1972\n(#72000089) 23 Newmarket Rd.\n43°07′48″N 70°55′05″W﻿ / ﻿43.13°N 70.918056°W Durham Home of American Revolutionary War General John Sullivan, elected President of New Hampshire.
34 Thompson Hall December 6, 1996\n(#96001468) Off Main St., University of New Hampshire campus\n43°08′09″N 70°55′59″W﻿ / ﻿43.135833°N 70.933056°W Durham
35 US Post Office-Dover Main July 17, 1986\n(#86002273) 133-137 Washington St.\n43°11′42″N 70°52′39″W﻿ / ﻿43.195°N 70.8775°W Dover
36 US Post Office-Somersworth Main July 17, 1986\n(#86002246) 2 Elm St.\n43°15′33″N 70°52′18″W﻿ / ﻿43.259167°N 70.871667°W Somersworth
37 Wiswall Falls Mills Site March 18, 1988\n(#88000184) John Hatch Park\nSouth of Wiswall Road just east of the Lamprey River\n43°06′15″N 70°57′44″W﻿ / ﻿43.1043°N 70.9621°W Durham
38 Woodbury Mill March 25, 2013\n(#13000156) 1 Dover St.\n43°12′07″N 70°52′29″W﻿ / ﻿43.201985°N 70.874587°W Dover
39 Woodman Institute July 24, 1980\n(#80000317) 182 Central Ave.\n43°11′20″N 70°52′28″W﻿ / ﻿43.188889°N 70.874444°W Dover
40 Samuel Wyatt House December 2, 1982\n(#82000626) 7 Church St.\n43°11′30″N 70°52′31″W﻿ / ﻿43.191667°N 70.875278°W Dover
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