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Gajkowski mieszka w:
| Warszawa | 83 |
| Kraków | 45 |
| Starogard Gdański | 35 |
| Gdańsk | 31 |
| Sulejówek | 28 |
| Toruń | 26 |
| Legnica | 25 |
| Brodnica | 20 |
| Elbląg | 19 |
| Krużlowa Niżna | 19 |
| Szczecin | 15 |
| Krzeszowice | 14 |
| Tczew | 14 |
| Wierzbowo | 14 |
| Krużlowa Wyżna | 13 |
| Szczytno | 13 |
| Chełmno | 11 |
| Gdynia | 11 |
| Grudziądz | 11 |
| Kamienna Góra | 11 |
| Kielce | 11 |
| Babi Dół | 9 |
| Będzin | 9 |
| Bratian | 9 |
| Miradz | 9 |
| Subkowy | 9 |
| Bartoszyce | 8 |
| Brzeziny | 8 |
| Bydgoszcz | 8 |
| Kołobrzeg | 8 |
| Mrągowo | 8 |
| Pińczów | 8 |
| Pułtusk | 8 |
| Tarnów | 8 |
| Bieruń | 7 |
| Szembruk | 7 |
| Biały Bór | 6 |
| Debrzno | 6 |
| Jegłownik | 6 |
| Kamienica | 6 |
| Kokoszkowy | 6 |
| Krusin | 6 |
| Łódź | 6 |
| Majdan | 6 |
| Siemianowice Śląskie | 6 |
| Sopot | 6 |
| Szczukowice | 6 |
| Zegartowice | 6 |
| Brzozowo | 5 |
| Bytom | 5 |
| Cepno | 5 |
| Grodzisk Mazowiecki | 5 |
| Gulczewo | 5 |
| Kłodnica Dolna | 5 |
| Kochanów | 5 |
| Mileszewy | 5 |
| Nieżywięć | 5 |
| Odolion | 5 |
| Olsztynek | 5 |
| Reda | 5 |
| Rypin | 5 |
| Skarszewo | 5 |
| Solec Kujawski | 5 |
| Stare Bojanowo | 5 |
| Unisław | 5 |
| Wieliczka | 5 |
| Zielona Góra | 5 |
| Gliwice | 4 |
| Głogów | 4 |
| Gorzów Wielkopolski | 4 |
| Inowrocław | 4 |
| Kartuzy | 4 |
| Katowice | 4 |
| Kętrzyn | 4 |
| Knurów | 4 |
| Legionowo | 4 |
| Lębork | 4 |
| Miastko | 4 |
| Międzyrzecz | 4 |
| Olsztyn | 4 |
| Otwock | 4 |
| Proszowice | 4 |
| Radom | 4 |
| Rąbień | 4 |
| Siedlce | 4 |
| Słupsk | 4 |
| Strzelce Krajeńskie | 4 |
| Tenczynek | 4 |
| Wąbrzeźno | 4 |
| Zabierzów | 4 |
| Zabrze | 4 |
| Nowe Załubice | 3 |
| Poznań | 3 |
| Prężyce | 2 |
| Bieżuń | 1 |
| Cieszymowo Wielkie | 1 |
| Domachowo | 1 |
| Henrykowo | 1 |
| Koluszki | 1 |
| Kozłowiec | 1 |
| Nowęcin | 1 |
| Palczewice | 1 |
| Poddębice | 1 |
| Siemiątkowo Koziebrodzkie | 1 |
| Spychowo | 1 |
| Strzygi | 1 |
