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Table 1.

Town characteristics in Lamprey River and Tides to Storms project areas. DOI: https://doi.org/10.1525/elementa.2020.20.00048.t1

TownArea (sq. mi.)Saltwater Floodinga (sq. mi.)Freshwater Floodingb (sq. mi.)POP 2018Median AgeMunicipal Budgetc (Millions)Percent Bachelor’s DegreePer Capita IncomeBelow PovertyType of Governmentd
Lamprey River Project 
Durhame 24.7 0.2 0.9 16,574 20.8 $27.35 76% $23,988 26.8% Administrator & Council 
Newmarket 14.2 0.2 1.0 9,147 35.9 $27.52 47% $39,386 5.9% Town Administrator & Council 
Lee 20.1 0.0 1.2 4,481 48.1 $8.87 59% $48,610 1.4% Selectmen 
Epping 26.2 0.0 1.4 7,045 40.8 $11.64 30% $35,459 8.9% Selectmen & SB2 
Raymond 29.6 0.0 1.5 10,451 41.6 $11.71 22% $34,132 8.1% Town Manager & Selectmen 
Average 23.0 0.1 1.2 9,539 37.4 $17.4 46.8% $36,315 10.2%  
Tides to Storms 
Portsmouth 16.8 1.6 n/a 21,896 40.3 $64.92 56% $50,351 6.1% City Manager & Council 
New Castle 2.4 0.9 n/a 981 61.7 $4.00 70% $105,175 0.9% Selectmen 
Rye 36.7 2.7 n/a 5,452 55.0 $13.53 (2017) 57% $75,666 3.6% Selectmen 
North Hampton 14.4 0.5 n/a 4,494 50.5 $6.67 (2016) 53% $60,176 5.2% Selectmen 
Hampton 14.7 4.4 n/a 15,564 51.2 $22.57 50% $51,748 4.9% Selectmen 
Hampton Falls 12.5 1.9 n/a 2,372 48.9 $2.82 (2018) 59% $69,656 3.5% Town Meeting & SB 2 
Seabrook 9.6 3.0 n/a 8,869 51.5 $23.52 16% $35,356 4.9% Town Manager & Selectmen 
Average 15.3 2.1 n/a 8,518 51.3 $28.8 51.6% $64,018 4.2%  
TownArea (sq. mi.)Saltwater Floodinga (sq. mi.)Freshwater Floodingb (sq. mi.)POP 2018Median AgeMunicipal Budgetc (Millions)Percent Bachelor’s DegreePer Capita IncomeBelow PovertyType of Governmentd
Lamprey River Project 
Durhame 24.7 0.2 0.9 16,574 20.8 $27.35 76% $23,988 26.8% Administrator & Council 
Newmarket 14.2 0.2 1.0 9,147 35.9 $27.52 47% $39,386 5.9% Town Administrator & Council 
Lee 20.1 0.0 1.2 4,481 48.1 $8.87 59% $48,610 1.4% Selectmen 
Epping 26.2 0.0 1.4 7,045 40.8 $11.64 30% $35,459 8.9% Selectmen & SB2 
Raymond 29.6 0.0 1.5 10,451 41.6 $11.71 22% $34,132 8.1% Town Manager & Selectmen 
Average 23.0 0.1 1.2 9,539 37.4 $17.4 46.8% $36,315 10.2%  
Tides to Storms 
Portsmouth 16.8 1.6 n/a 21,896 40.3 $64.92 56% $50,351 6.1% City Manager & Council 
New Castle 2.4 0.9 n/a 981 61.7 $4.00 70% $105,175 0.9% Selectmen 
Rye 36.7 2.7 n/a 5,452 55.0 $13.53 (2017) 57% $75,666 3.6% Selectmen 
North Hampton 14.4 0.5 n/a 4,494 50.5 $6.67 (2016) 53% $60,176 5.2% Selectmen 
Hampton 14.7 4.4 n/a 15,564 51.2 $22.57 50% $51,748 4.9% Selectmen 
Hampton Falls 12.5 1.9 n/a 2,372 48.9 $2.82 (2018) 59% $69,656 3.5% Town Meeting & SB 2 
Seabrook 9.6 3.0 n/a 8,869 51.5 $23.52 16% $35,356 4.9% Town Manager & Selectmen 
Average 15.3 2.1 n/a 8,518 51.3 $28.8 51.6% $64,018 4.2%  

aEstimated area saltwater flooding from 100-year storm surge and 1.7 feet of sea-level rise (Rockingham Planning Commission, 2017).

bEstimated area freshwater (riverine) 100-year flood on the Lamprey River main stem with 2005 land use and 8.5” precipitation event (Wake et al., 2013).

c2019 unless otherwise indicated.

dSB2 is a two-part process including a deliberative session and ballot voting.

eDurham, as a university town (the home of UNH), has a high student population.

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