diff --git a/devTools/flagUpdater/update.ts b/devTools/flagUpdater/update.ts
index 0420018ff2e..353d89f1db5 100644
--- a/devTools/flagUpdater/update.ts
+++ b/devTools/flagUpdater/update.ts
@@ -1,4 +1,4 @@
-import { Country, regions } from "@ourworldindata/utils"
+import { Region, regions } from "@ourworldindata/utils"
 
 import path from "path"
 import fs from "fs-extra"
@@ -11,8 +11,8 @@ const FLAG_BASE_PATH = path.join(BASE_DIR, "node_modules/flag-icons/flags/4x3")
 const FLAG_TARGET_DIR = path.join(BASE_DIR, "public/images/flags")
 
 const main = async () => {
-    const skippedBecauseMissingShortCode: Country[] = []
-    const failedBecauseNoFlag: Country[] = []
+    const skippedBecauseMissingShortCode: Region[] = []
+    const failedBecauseNoFlag: Region[] = []
     let successfulCount: number = 0
 
     for (const f of await glob(`${FLAG_TARGET_DIR}/*.svg`)) {
@@ -22,22 +22,24 @@ const main = async () => {
     await fs.ensureDir(FLAG_TARGET_DIR)
 
     for (const region of regions) {
-        if (region.regionType !== "country" || region.isHistorical) continue
-        const country = region as Country
+        // We want to ensure we have a flag for every non-historical country; others are optional
+        const isNonHistoricalCountry =
+            region.regionType === "country" && !region.isHistorical
 
-        let shortCode = country.shortCode
+        let shortCode = "shortCode" in region && region.shortCode
 
-        if (country.code === "OWID_KOS") {
+        if (region.code === "OWID_KOS") {
             // Kosovo is a special case; it doesn't have an official ISO code,
             // but has been assigned the special "XK" and has a flag under that code
             shortCode = "XK"
-        } else if (country.code === "PS_GZA") {
+        } else if (region.code === "PS_GZA") {
             // Gaza Strip and Palestine use the same flag
             shortCode = "PS"
         }
 
         if (!shortCode) {
-            skippedBecauseMissingShortCode.push(country)
+            if (isNonHistoricalCountry)
+                skippedBecauseMissingShortCode.push(region)
             continue
         }
 
@@ -47,11 +49,11 @@ const main = async () => {
         )
         const exists = await fs.pathExists(flagPath)
         if (!exists) {
-            failedBecauseNoFlag.push(country)
+            if (isNonHistoricalCountry) failedBecauseNoFlag.push(region)
             continue
         }
 
-        const targetPath = path.join(FLAG_TARGET_DIR, `${country.code}.svg`)
+        const targetPath = path.join(FLAG_TARGET_DIR, `${region.code}.svg`)
         await fs.copy(flagPath, targetPath)
         successfulCount++
     }
diff --git a/public/images/flags/ATA.svg b/public/images/flags/ATA.svg
new file mode 100644
index 00000000000..53840cccb06
--- /dev/null
+++ b/public/images/flags/ATA.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-aq" viewBox="0 0 640 480">
+  <path fill="#3a7dce" d="M0 0h640v480H0z"/>
+  <path fill="#fff" d="M157.7 230.8c-3.5-7.8-3.5-7.8-3.5-15.6-1.8 0-2 .3-3 0-1.1-.3-1.5 7.2-4.8 5.8-.5-.8 2.4-6.2-.7-8.5-1-.7.2-5.2-.2-7.2 0 0-4 2.4-7-5.8-1.5-2.2-3.5 2-3.5 2s.9 2.4-.7 3c-2.2-1.8-3.9-.8-6.7-3.4-2.8-2.5.6-5.4-4.8-7.5 3.5-9.8 3.5-7.9 12.2-11.8-5.2-4-5.2-4-8.7-9.8-5.2-2-7-4-12.2-7.8-7-9.9-10.5-29.5-10.5-43.2 4.4-4.6 10.5 15.7 19.2 21.6l12.2 5.9c7 3.9 8.7 7.8 14 11.7l15.6 6c7 5.8 10.5 13.6 15.7 15.6 5.7 0 6.8-3.7 8.6-3.9 10.3-.6 15.5-2 17.5-5.5 2.1-2.8 7 1.6 21-4.3l-1.7-7.9s3.7-3.4 8.7-2c-.1-3.5-.5-13 4.5-17.4-3-3.5 1.8-9 2-10.7-1.4-8.6 1.4-8.7 2-11.3.6-2.5-2.4-1.7-1.6-5.2.9-3.5 6-4.3 6.6-7.2.7-2.9-1.1-14.3-1.3-16.8 9.4-2.8 12.4-11.4 15.7-7.8C264 70 265.8 66 276.3 66c1.4-3.6-3.9-6.7-1.8-7.9 3.5-.5 6.1-.2 10.2 5.7 1.3 2 1.6-2.7 2.9-3.2 1.3-.5 4.4-.5 4.9-2.8.5-2.4 1.2-5.6 3-9.5 1.4-3.2 2.5 1.3 3.8 7.5 7.4.3 24 2.1 31 4.3 5.2 1.5 8.7-1.5 13.7-2.2 3.7 4.2 7.2 1 9.2 10 2.7 4.8 7.3.4 8.3 1.8 5.8 18.1 25.8 5.9 27.4 6.2 2.5 0 5.6 8 7.7 7.9 3.2-.6 2.3-3.1 5.2-2.1-.8 6.8 5.6 14.6 5.6 19.7 0 0 1.5.9 3-.6 1.4-1.6 2.7-5.4 4-5.3 3 .5 22 6 25.8 7.9 1.7 3.5 3.3 5.3 6.8 4.7 2.8 2.1.8 5 2.4 5.1 3.5-2 4.7-4 8.2-2.1 3.5 2 7 5.9 8.7 9.8 0 2-1.8 9.8 0 21.6.9 3.9 9.7 32.3 9.7 35.2 0 4-2.7 6-4.5 9.9 7 5.9 0 15.7-3.5 21.6 26.2 5.9 14 17.6 34.9 11.7-5.2 13.8-3.4 12.7 1.8 26.4-10.4 7.8-.2 10.2-7.1 20-.5.7 4.1 8.6 10.5 8.6-1.7 15.6-7 9.8-5.2 33.3-13.7-.3-8.2 17.6-17.4 15.7.5 11.2 5.2 12.2 3.4 23.5-7 2-7 2-10.4 7.9l-5.2-2c-1.8 9.8-5.3 11.8 0 21.6 0 0-6.8.2-8.8 0-.1 3.4 3 4.3 3.5 7.8-.2 1.4-9.9 7.6-17.4 7.9-2 4.8 5.2 10 4.8 12.4-8.2 1.8-11.8 13-11.8 13s4.2 2 3.5 4c-2.2-1.8-3.5-2-7-2-1.7.5-6 0-10 7.7-4.5 1.6-6.6 1-10 6-1.5-4.7-3.7.1-6.3 2-2.7 1.8-6.2 6.5-6.7 6.3.1-1.4 1.6-6.3 1.6-6.3L399 437c-.7.1-.5-5.7-2.2-5.5-1.7.2-6.4 7.3-8 7.5-1.6.2-2.1-2.2-3.5-2-1.4.2-4 7.5-5 7.7-1 .1-5-4.5-8.3-3.8-17.1 6.8-19.9-13.4-22.5-2-3.6-2.2-3-1-6.7.1-2.3.7-2.5-3.4-4.6-3.4-4.1.2-4 4.6-6.2 3.3-1.8-9.2-13-7.6-14-11.5-1-4 4.8-4 6.6-6.8 1.4-4-1.5-5.6 4.3-9.4 7.5-5.7 6.8-19.8 4.9-25.3 0 0-5.9-17.7-7-17.7-3.5-1-3.5 6.5-8.6 8.6-10.5 4-29-9.9-32.2-9.9-2.9 0-16.5 3.6-16-4-2 7.4-9.5 1.7-10 1.7-7 0-4.3 6.1-9 5.9-2.1-.8-23.6-2.3-23.6-2.3v4l-26.1-11.8c-10.5-4-5.3-13.7-22.7-7.8v-11.8h-8.7c3.5-23.6 0-11.8-1.8-33.4l-7 2c-7-10.6 9.8-8.6-5.2-15.7 0 0 .3-11.7-3.5-7.8-.7.5 1.8 5.8 1.8 5.8-14-2-17.4-5.8-17.4-21.5 0 0 11.4 1.8 10.4 0-1.6-3-3.7-22-3.4-23.4-.1-2.6 10.7-9 8.6-15.2 1.4-.6 5.3-.7 5.3-.7"/>
+  <path fill="none" stroke="#fff" stroke-linejoin="round" stroke-width="2.5" d="M595.5 297.6c-.6 1.3-.5 2.6.1 3.6 1.1-1.7.2-2.4 0-3.6zm-476-149.4s-3-.4-2.4 2.3c1-2 2.3-2.2 2.4-2.3zm-.3-6.4c-1.7 0-3.8-.2-3 2.5 1-2.1 3-2.4 3-2.5zm12.7 36.3s2.6-.2 2 2.5c-1-2-2-2.4-2-2.5z" transform="scale(.86021 .96774)"/>
+</svg>
diff --git a/public/images/flags/SJM.svg b/public/images/flags/SJM.svg
new file mode 100644
index 00000000000..bb2799ce73c
--- /dev/null
+++ b/public/images/flags/SJM.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-sj" viewBox="0 0 640 480">
+  <path fill="#ef2b2d" d="M0 0h640v480H0z"/>
+  <path fill="#fff" d="M180 0h120v480H180z"/>
+  <path fill="#fff" d="M0 180h640v120H0z"/>
+  <path fill="#002868" d="M210 0h60v480h-60z"/>
+  <path fill="#002868" d="M0 210h640v60H0z"/>
+</svg>
diff --git a/public/images/flags/UMI.svg b/public/images/flags/UMI.svg
new file mode 100644
index 00000000000..9e9eddaa4a7
--- /dev/null
+++ b/public/images/flags/UMI.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-um" viewBox="0 0 640 480">
+  <path fill="#bd3d44" d="M0 0h640v480H0"/>
+  <path stroke="#fff" stroke-width="37" d="M0 55.3h640M0 129h640M0 203h640M0 277h640M0 351h640M0 425h640"/>
+  <path fill="#192f5d" d="M0 0h364.8v258.5H0"/>
+  <marker id="um-a" markerHeight="30" markerWidth="30">
+    <path fill="#fff" d="m14 0 9 27L0 10h28L5 27z"/>
+  </marker>
+  <path fill="none" marker-mid="url(#um-a)" d="m0 0 16 11h61 61 61 61 60L47 37h61 61 60 61L16 63h61 61 61 61 60L47 89h61 61 60 61L16 115h61 61 61 61 60L47 141h61 61 60 61L16 166h61 61 61 61 60L47 192h61 61 60 61L16 218h61 61 61 61 60z"/>
+</svg>