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Professional Map Layout

Goal: Take a working map and turn it into a polished, ready-for-portfolio layout PDF.

→ Pair this with Layout Design (ArcGIS Pro) and Cartography (roadmap).


The 10-step recipe

1. Lock down the map first

Don't start the layout until your map is done. Symbology, labels, classification — finalize them. Layouts are about composition, not analysis.

2. Pick paper size and orientation

Use Size
Online viewing / portfolio Letter (8.5×11) Landscape
One-pager / report Letter Portrait
Wall poster Tabloid (11×17) or A3
Presentation slide Custom 16:9 (10×5.625)

Insert ribbon → New Layout → pick.

3. The grid

Use Guides (Layout ribbon → Guides) to set a 12-column grid:

  • Margin: 0.5"
  • Guides at 1.5", 3", 4.5", 6", 7.5", 9.5"

This gives you a structure to align everything.

4. The map frame

  • Place a single map frame in the largest area (~70% of the page).
  • Activate it. Zoom to your story extent. Close Activation.
  • Lock the scale: with the frame selected, set Scale in the bottom-left explicitly.

5. Hierarchy with type

Title:        24–28 pt, bold, sans-serif
Subtitle:     12–14 pt, regular, italic
Section heads: 10 pt, bold, all caps
Body text:    9 pt, regular
Labels:       8–9 pt
Source line:  7–8 pt, gray

Use 1 sans-serif font (Inter, Source Sans, Open Sans). Maybe a serif for body text.

6. The 6 essentials

Insert each:

Element Position Notes
Title Top-left or top-center Frames the question
Subtitle Below title Context, time period, source
Legend Right column Trim heading, round labels
Scale bar Bottom-left of map Stepped Scale Line 1
North arrow Top-right of map Subtle
Source / projection / author Bottom of page 7–8 pt, gray

7. Inset map (locator)

For a city / regional map, add a small state-level inset:

  1. Insert → Map Frame → small rectangle, top-right corner.
  2. Set its extent to the state.
  3. Add a rectangle showing the main map's extent.
  4. Right-click the inset frame → Properties → Extent → Linked to MainMap → Update.

Now the inset auto-updates if you reframe the main map.

8. Restraint

Less is more

A clean professional layout has:

  • 1 main map (occasionally 2 for before/after)
  • 1 inset
  • 1 legend
  • 1 title
  • 0 unnecessary elements

Don't add a chart, table, photo, and 4 callouts unless each adds information the map alone can't.

9. Visual hierarchy

The viewer should look:

1. Title              (largest, top-left)
2. Map content        (center, biggest area)
3. Legend / scale     (right side, medium)
4. Source / metadata  (bottom, small)

Colors: most saturated on the data, muted on the basemap, neutral on the page.

10. Export

Use Format
Portfolio site PDF (vector, 300 dpi), embed at 50% on retina
Slide PNG, 150 dpi
Print PDF, 300 dpi, CMYK

→ Detail: Exporting Maps.


A copy-paste source line

Data: U.S. Census ACS 5-year (2018–2022) · TIGER/Line 2022.
Projection: NAD83 / Conus Albers (EPSG:5070).
Map by [Your Name], 2026.

Drop this in the bottom-right at 7 pt, gray. Adjust to match your data.


Layout review checklist

Before you ship a layout, run through:

  • Title answers a clear question
  • All 6 elements present
  • Legend matches the map exactly
  • Scale bar attached to the map frame
  • Source + projection cited
  • No default font, no default symbology
  • Color scheme matches data type
  • Numbers in legend are rounded
  • Inset map (if any) is visually distinct
  • Padding around every element ≥ ⅛"
  • Export at 300 dpi PDF + visually checked

If you can tick all 11, your map is ready for a portfolio.


Practice

Take an old map and redesign it

  1. Find a default-symbology map you've made.
  2. Apply this checklist.
  3. Export both versions.
  4. Side-by-side: which would you put on your portfolio?