| AIM_size_designation | Small Museum (up to 20,000 visitors p.a.) |
| AIM_size_source | mm.aim.0758 |
| Accreditation | Accredited |
| Accreditation_source | mm.mald.123 |
| Address_line_1 | Oakley Wharf No.1 |
| Address_line_2 | The Harbour |
| Admin_hierarchy | /Wales/Gwynedd (Welsh UA) |
| DOMUS_Subject_Matter | maritime |
| DOMUS_identifier | 1540 |
| Deprivation_index | 5 |
| Deprivation_index_crime | 2 |
| Deprivation_index_education | 3 |
| Deprivation_index_employment | 7 |
| Deprivation_index_health | 8 |
| Deprivation_index_housing | 1 |
| Deprivation_index_income | 6 |
| Deprivation_index_services | 10 |
| Geodemographic_group | English and Welsh Countryside |
| Geodemographic_group_code | 3ar |
| Geodemographic_group_name_long | 3ar-English and Welsh Countryside |
| Geodemographic_subgroup | Sparse English and Welsh Countryside |
| Geodemographic_subgroup_code | 3a2r |
| Geodemographic_subgroup_name_long | 3a2r-Sparse English and Welsh Countryside |
| Geodemographic_supergroup | Countryside Living |
| Geodemographic_supergroup_code | 3r |
| Geodemographic_supergroup_name_long | 3r-Countryside Living |
| Governance | Independent-Not_for_profit |
| Identifier_used_in_source_database | WA000076 |
| Latitude | 52.925149 |
| Longitude | -4.12798 |
| Name_of_museum | Porthmadog Maritime Museum |
| Postcode | LL49 9LU |
| Primary_provenance_of_data | domus |
| Region_country | Wales |
| Size | small |
| Size_prov | domus |
| Subject_Matter | Sea_and_seafaring-Mixed |
| Town_or_City | Porthmadog |
| Visitor_Numbers_Data | 1:3775:1998:domus |
| Year_closed | 9999:9999 |
| Year_closed_source | https://www.tripadvisor.co.uk/Attraction_Review-g616282-d4755184-Reviews-Porthmadog_Maritime_Museum-Porthmadog_Gwynedd_North_Wales_Wales.html |
| Year_opened | 1982:1982 |
| Year_opened_source | dfoundation |
| media | 0 |
| project_id | mm.domus.WA076 |