THE UNITED STATES OF AMERICA — INSULAR AREAS AND STATES
Edition 1.0 (2026) · doi:10.5281/zenodo.22863229
Compiled by Brian C. Louden · ORCID 0009-0005-1831-9911
VI Update, Christiansted, U.S. Virgin Islands
Permalink: https://viupdate.com/map/
Corrections: tips@viupdate.com. Errata published at the permalink.

DEPOSIT CONTENTS
US_Insular_Areas_24x36_Print.pdf — both 24 × 36 inch portrait sheets,
  DeviceCMYK, embedded TrueType fonts, 0.125 inch bleed and crop marks,
  compressed content streams.
  The 24.75 × 36.75 inch MediaBox includes marks; the TrimBox is 24 × 36.
  Print at 100% using the TrimBox; do not fit the full MediaBox to stock.
  All artwork is vector, supporting 300 dpi or higher without upsampling.
  Process CMYK is used; no printer-specific ICC profile or PDF/X claim.
US_Insular_Areas_24x36_Screen.pdf — both sheets, RGB, vector text retained.
Sheet-1_Screen.pdf / Sheet-2_Screen.pdf — individual RGB sheet downloads.
US_Insular_Areas_Checklist.json — every named point and label anchor,
  geographic coordinates, projection definitions, nominal representative
  fractions, and scale-bar lengths in points and pixels at 300 and 96 dpi.
SHA256_Source_Manifest.json — source and font hashes, source URLs, licenses,
  embedding permissions, and confirmation that swains.osm and rose.osm are
  OpenStreetMap extracts under ODbL. Paths are relative to the source ZIP.
US_Insular_Areas_Source_Set.zip — reproducible drawing code, original inputs,
  both Census vintages, font files and license, comparison, and this README.
US_Insular_Areas_Social_Set.zip — 12 independently composed cards in each of
  1080 × 1350 and 1080 × 1920; numbered alt text and typography audit.
US_Insular_Areas_Video_Panels.zip — five 4000px-wide transparent PNGs.
Alt_Text.txt — numbered plain-text descriptions of the social cards.
Link_Preview_1200x675.png — link-preview image.
Changelog.txt / Boundary_Comparison.json — changes and measured differences.

BOUNDARIES AND POPULATION ARE DIFFERENT PRODUCTS
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files,
1:500,000 (GENZ2025 series, cb_2025); boundaries as of January 1, 2025.
Source: https://www2.census.gov/geo/tiger/GENZ2025/shp/cb_2025_us_state_500k.zip
Population: 2020 Census (Puerto Rico); 2020 Island Areas Censuses (American
Samoa, Guam, Northern Mariana Islands and U.S. Virgin Islands).
Counts: PR 3,285,874; VI 87,146; GU 153,836; MP 47,329; AS 49,710.
Total: 3,623,895. The next full decennial census is scheduled for 2030.
Town coordinates: GeoNames (CC BY 4.0).
Atoll lagoon and reef detail: © OpenStreetMap contributors (ODbL).
Globe background and minor-island geometry: Natural Earth (public domain).

GEOMETRY, SCALES AND AUDIT
The 2025 archive replaces the 2024 base without changing the existing
projection definitions, panel rectangles or geographic extents. Comparison
of the five territory geometries finds no material change: the largest
Hausdorff separation is approximately 0.09 m in the U.S. Virgin Islands.
Small numerical differences are recorded rather than claiming identical bytes.
Asuncion's label anchor is 19.6725°N, 145.4058°E. Midway Atoll is the consistent
display name. The OSM Swains lagoon and Rose reef-ring geometry is retained.
The polar globe is azimuthal equidistant, centered at 47.68058865°N,
142.3636924°W, with an 11,000 km displayed radius. Its scale is radial from
that center. The center is the midpoint of the smallest spherical cap that
encloses every boundary vertex of the fifty states, D.C. and the five
inhabited territories (285,737 vertices of cb_2025); that cap is fixed by two
vertices, the south tip of Guam (13.235°N 144.645°E) and the east end of
St. Croix (17.752°N 64.568°W), 15,324 km apart on the WGS 84 ellipsoid. The
sheet draws that great circle through the center. compute_center.py derives
and checks the center from the archive. All five specified southern
territories/islands lie inside the neatline. Geographic coordinates and page label positions are separate fields.
RF denominator = 72 / (0.0254 × projected points per metre). The JSON retains
full precision; collars round denominators. Mercator scale is true along the
specified latitude of true scale; Albers scale varies by position/direction.
Pixels = vector points × dpi / 72. Each panel has km and statute-mile bars.
For the nine minor outlying islands, 'uninhabited' means no permanent civilian
population, allowing for temporary research, refuge or military personnel.
The status table covers 14 U.S. territories: incorporation, organization,
2020 population, citizenship at birth, voice in Congress, presidential
electors, SSI eligibility and geodesic distance from the globe's center, each
cell cited to statute or case law in the notes beneath the table. It excludes
the three sovereign freely associated states and the Guano Islands Act
claims to Bajo Nuevo and Serranilla banks; Navassa and Wake are listed
because the United States administers them, with their competing claims
noted.

REBUILD
Keep poster-set/, map-work/ and map-alternative/ adjacent after unzipping.
Python dependencies: reportlab, matplotlib, numpy, pillow, pyshp, pyproj,
shapely (2.x), pypdf, pdfplumber, pymupdf and fonttools.
Run, in order (the scripts read and write UTF-8 explicitly):
  python poster-set/compare_boundaries.py
  python poster-set/compute_center.py
  python poster-set/build.py
  python poster-set/preflight.py
  python poster-set/social.py
  python poster-set/video_assets.py
  python poster-set/package_release.py
The older map-work/build_map.py is retained as a label-placement source;
do not run it to regenerate Edition 1.0. The current entry point is build.py.

RIGHTS
Design, layout and compilation © 2026 Brian C. Louden. Released CC BY 4.0.
Underlying data remain under their own licenses as credited. Geometry
derived from OpenStreetMap is licensed ODbL; any data files published
alongside these sheets are distributed under ODbL.
CC BY 4.0: https://creativecommons.org/licenses/by/4.0/
ODbL: https://opendatacommons.org/licenses/odbl/1-0/
GeoNames: https://www.geonames.org/about.html
OSM: https://www.openstreetmap.org/copyright
Natural Earth: https://www.naturalearthdata.com/about/terms-of-use/
All four embedded faces are DejaVu (Serif, Serif Italic, Sans, Sans Bold).
Their Bitstream Vera / DejaVu license permits embedding and commercial
distribution; OS/2 fsType is 0 for each bundled face. The full upstream
license, including its Arev provisions, is supplied in licenses/.

ZENODO
Use the existing reserved version DOI 10.5281/zenodo.22863229.
The concept DOI is filled into the landing page after publication.
Minor file corrections can be initiated within 30 days after publication;
Zenodo requires the edit draft to be republished within 45 days.
https://help.zenodo.org/docs/deposit/manage-files/
