Irish Population in New Hampshire by City : 2025 Ranking & Insights

The Irish population in New Hampshire totals 282,555, with representation in every incorporated city included in this analysis. Leading communities are found in Manchester (21,372), followed by Nashua (17,194) and Dover (8,222), reflecting a strong urban presence. Despite this broad municipal footprint, the statewide count exceeds the combined city totals - suggesting that many Irish residents may live in unincorporated areas or towns below the population threshold used here. The analysis below explores how Irish communities are distributed across New Hampshire and how this compares with broader patterns nationwide.

Top 5 cities with the largest Irish population in New Hampshire

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  • 1
    Manchester
    Irish population in Manchester is 21,372
    18.52% of Manchester population is Irish
  • 2
    Nashua
    Irish population in Nashua is 17,194
    18.87% of Nashua population is Irish
  • 3
    Dover
    Irish population in Dover is 8,222
    24.86% of Dover population is Irish
  • 4
    Concord
    Irish population in Concord is 8,072
    18.25% of Concord population is Irish
  • 5
    Derry town
    Irish population in Derry town is 7,727
    22.50% of Derry town population is Irish

Overview of Irish population in New Hampshire

  • Population Count and Percentage: American Community Survey show New Hampshire contains 282,555 Irish residents (20.4% of 1.4 million total state population), positioning the state at the 37th percentile nationally among U.S. states for Irish population concentrations.
  • Comparison to State and National Averages: U.S. Census data records indicate New Hampshire's Irish population of 20.4% exceeds the national average of 9.4% by a factor of 2.2.
  • Share of Total National Population: Official American Community Survey data indicates New Hampshire contains 282,555 Irish residents, representing less than 1% of the nation's total Irish population of 31.2 million, constituting a minimal fraction of the national demographic community relative to the state's overall population size.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data indicates New Hampshire's density of 31.6 Irish Americans per square mile exceeds the national average of 8.8 per square mile by three and a half times, establishing the state as a significant concentration center for Irish demographic communities.
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216 Cities in New Hampshire Ranked by Irish Population

View Methodology
American Community Survey data [1] show Irish populations across all incorporated cities in New Hampshire, with no cities recording zero residents identified as Americans of Irish birth or descent. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for all incorporated cities included in this analysis*.
cities in New Hampshire ranked by Irish population count
Rank by Irish Population
City
Irish Population
% of Total City Population
% of Total New Hampshire Irish Population
5 Year Rank Trend
1 Manchester 21,372 18.52% 7.56%
2 Nashua 17,194 18.87% 6.09%
3 Dover 8,222 24.86% 2.91%
4 Concord 8,072 18.25% 2.86%
5 Derry town 7,727 22.50% 2.73%
6 Salem town 7,446 24.30% 2.64%
7 Londonderry town 7,066 26.95% 2.50%
8 6,651 20.24% 2.35%
9 6,264 24.59% 2.22%
10 5,808 21.00% 2.06%
11 5,167 21.91% 1.83%
12 5,018 22.47% 1.78%
13 4,684 28.62% 1.66%
14 3,942 23.21% 1.40%
15 3,722 24.72% 1.32%
16 3,690 22.92% 1.31%
17 3,663 19.77% 1.30%
18 3,626 15.82% 1.28%
19 3,616 25.23% 1.28%
20 3,470 21.79% 1.23%
21 3,437 21.14% 1.22%
22 3,186 26.95% 1.13%
23 2,933 19.62% 1.04%
24 2,732 22.65% 0.97%
25 2,399 33.22% 0.85%
26 2,384 23.68% 0.84%
27 2,351 30.37% 0.83%
28 2,337 27.40% 0.83%
29 2,308 15.64% 0.82%
30 2,259 24.93% 0.80%
31 2,258 28.76% 0.80%
32 2,132 19.67% 0.75%
33 2,068 24.34% 0.73%
34 1,952 21.35% 0.69%
35 1,949 23.13% 0.69%
36 1,917 20.33% 0.68%
37 1,824 29.61% 0.65%
38 1,763 21.25% 0.62%
39 1,709 28.34% 0.60%
40 1,704 27.79% 0.60%
41 1,664 26.58% 0.59%
42 1,658 25.16% 0.59%
43 1,647 17.48% 0.58%
44 1,635 25.05% 0.58%
45 1,622 29.08% 0.57%
46 1,615 17.05% 0.57%
47 1,614 28.33% 0.57%
48 1,604 20.60% 0.57%
49 1,586 21.73% 0.56%
50 1,521 23.56% 0.54%
51 1,434 19.49% 0.51%
52 1,405 20.95% 0.50%
53 1,367 10.47% 0.48%
54 1,331 28.61% 0.47%
55 1,328 17.99% 0.47%
56 1,325 15.13% 0.47%
57 1,299 22.97% 0.46%
58 1,281 28.23% 0.45%
59 1,262 21.20% 0.45%
60 1,259 23.92% 0.45%
61 1,254 10.72% 0.44%
62 1,243 25.00% 0.44%
63 1,223 18.48% 0.43%
64 1,205 26.91% 0.43%
65 1,152 28.19% 0.41%
66 1,113 22.07% 0.39%
67 1,112 24.77% 0.39%
68 1,077 25.22% 0.38%
69 1,048 25.60% 0.37%
70 1,042 17.44% 0.37%
71 1,035 26.30% 0.37%
72 1,029 21.51% 0.36%
73 1,016 20.61% 0.36%
74 966 14.24% 0.34%
75 943 20.46% 0.33%
76 900 18.38% 0.32%
77 885 14.83% 0.31%
78 882 19.28% 0.31%
79 877 18.18% 0.31%
80 873 19.27% 0.31%
81 851 20.91% 0.30%
82 846 13.05% 0.30%
83 831 11.30% 0.29%
84 828 15.51% 0.29%
85 820 13.60% 0.29%
86 805 23.69% 0.28%
87 773 12.16% 0.27%
88 754 23.15% 0.27%
89 752 28.55% 0.27%
90 750 14.14% 0.27%
91 745 19.60% 0.26%
92 739 18.54% 0.26%
93 736 16.15% 0.26%
94 723 13.36% 0.26%
95 720 22.05% 0.25%
96 719 26.41% 0.25%
97 713 14.55% 0.25%
98 688 13.05% 0.24%
99 684 26.14% 0.24%
100 681 15.40% 0.24%
101 655 21.45% 0.23%
102 635 27.92% 0.22%
103 628 22.96% 0.22%
104 615 20.13% 0.22%
105 610 15.26% 0.22%
106 609 24.01% 0.22%
107 591 12.50% 0.21%
108 583 26.94% 0.21%
109 582 14.46% 0.21%
110 578 12.88% 0.20%
111 575 13.68% 0.20%
112 524 26.07% 0.19%
113 523 23.94% 0.19%
114 522 20.69% 0.18%
115 520 23.34% 0.18%
116 508 20.45% 0.18%
117 506 10.39% 0.18%
118 478 20.28% 0.17%
119 476 17.23% 0.17%
120 475 14.72% 0.17%
121 472 18.02% 0.17%
122 462 29.60% 0.16%
123 456 17.16% 0.16%
124 432 19.57% 0.15%
125 426 25.07% 0.15%
126 417 21.18% 0.15%
127 413 12.22% 0.15%
128 409 18.43% 0.14%
129 406 16.26% 0.14%
130 400 10.90% 0.14%
131 397 16.60% 0.14%
132 389 22.14% 0.14%
133 388 19.51% 0.14%
134 387 23.82% 0.14%
135 386 25.36% 0.14%
136 385 9.62% 0.14%
137 383 10.66% 0.14%
138 382 13.00% 0.14%
139 380 39.87% 0.13%
140 371 17.49% 0.13%
141 369 29.76% 0.13%
142 354 16.50% 0.13%
143 343 32.79% 0.12%
144 339 35.76% 0.12%
145 334 16.42% 0.12%
146 312 16.35% 0.11%
147 307 16.66% 0.11%
148 299 21.00% 0.11%
149 297 17.96% 0.11%
150 294 15.71% 0.10%
151 292 16.08% 0.10%
152 288 10.69% 0.10%
153 286 18.58% 0.10%
154 285 14.85% 0.10%
154 285 8.30% 0.10%
154 285 16.33% 0.10%
155 282 19.00% 0.10%
156 281 15.98% 0.10%
157 280 18.74% 0.10%
158 271 16.60% 0.10%
159 268 12.64% 0.09%
160 260 19.02% 0.09%
161 250 26.10% 0.09%
161 250 15.32% 0.09%
162 247 18.04% 0.09%
163 237 18.37% 0.08%
164 226 12.76% 0.08%
165 224 9.67% 0.08%
166 208 18.36% 0.07%
167 207 10.89% 0.07%
168 206 16.82% 0.07%
169 198 13.72% 0.07%
169 198 6.91% 0.07%
170 197 14.63% 0.07%
170 197 11.78% 0.07%
170 197 13.68% 0.07%
171 190 14.74% 0.07%
172 189 18.02% 0.07%
173 185 14.82% 0.07%
174 181 22.10% 0.06%
174 181 21.34% 0.06%
174 181 7.26% 0.06%
175 172 21.05% 0.06%
175 172 14.88% 0.06%
176 158 16.77% 0.06%
177 157 15.51% 0.06%
178 156 11.52% 0.06%
179 153 17.02% 0.05%
180 152 24.32% 0.05%
181 145 12.82% 0.05%
182 142 9.46% 0.05%
183 140 21.44% 0.05%
183 140 19.58% 0.05%
183 140 14.52% 0.05%
184 131 14.92% 0.05%
185 129 13.14% 0.05%
186 125 12.35% 0.04%
186 125 15.02% 0.04%
186 125 14.50% 0.04%
187 116 12.50% 0.04%
188 113 11.32% 0.04%
189 110 22.59% 0.04%
190 101 10.98% 0.04%
191 97 9.06% 0.03%
192 96 8.93% 0.03%
193 84 10.41% 0.03%
194 81 8.73% 0.03%
195 76 8.90% 0.03%
196 74 10.42% 0.03%
197 72 10.01% 0.03%
197 72 14.91% 0.03%
198 71 9.31% 0.03%
199 68 9.84% 0.02%
200 67 11.43% 0.02%
201 60 8.58% 0.02%
202 32 11.90% 0.01%
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks city in New Hampshire by their Irish population, using the most recent ACS data available.

How the Census defines Irish population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Irish ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Irish alone, while others identify as Irish along with another race (such as Irish and German).
  • We’ve used the “Irish alone or in any combination” category unless noted otherwise, which gives a broader picture of the Irish population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Irish alone or in combination in city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Irish .
  2. % of Total New Hampshire Irish Population – This tells us how much of the entire U.S. Irish population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Irish populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • City that don’t have any reported Irish population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Irish populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.