diff --git a/.changelog/41678.txt b/.changelog/41678.txt
new file mode 100644
index 000000000000..750b93ff1e49
--- /dev/null
+++ b/.changelog/41678.txt
@@ -0,0 +1,7 @@
+```release-note:enhancement
+resource/aws_account_region: Prevent errors when the region is an ENABLING or DISABLING state during creation
+```
+
+```release-note:enhancement
+resource/aws_account_region: Allow adoption of regions in an ENABLED or DISABLED state without an explicit import operation
+```
diff --git a/internal/service/account/region.go b/internal/service/account/region.go
index 42b500dab00c..e37b53673fef 100644
--- a/internal/service/account/region.go
+++ b/internal/service/account/region.go
@@ -91,6 +91,11 @@ func resourceRegionUpdate(ctx context.Context, d *schema.ResourceData, meta inte
 		timeout = d.Timeout(schema.TimeoutUpdate)
 	}
 
+	status, err := findRegionOptStatus(ctx, conn, accountID, region)
+	if err != nil {
+		return sdkdiag.AppendErrorf(diags, "reading Account Region status: %s", err)
+	}
+
 	if v := d.Get(names.AttrEnabled).(bool); v {
 		input := account.EnableRegionInput{
 			RegionName: aws.String(region),
@@ -99,10 +104,11 @@ func resourceRegionUpdate(ctx context.Context, d *schema.ResourceData, meta inte
 			input.AccountId = aws.String(accountID)
 		}
 
-		_, err := conn.EnableRegion(ctx, &input)
-
-		if err != nil {
-			return sdkdiag.AppendErrorf(diags, "enabling Account Region (%s): %s", id, err)
+		if requiresStatusChange(status.RegionOptStatus, true) {
+			_, err := conn.EnableRegion(ctx, &input)
+			if err != nil {
+				return sdkdiag.AppendErrorf(diags, "enabling Account Region (%s): %s", id, err)
+			}
 		}
 
 		if _, err := waitRegionEnabled(ctx, conn, accountID, region, timeout); err != nil {
@@ -116,10 +122,11 @@ func resourceRegionUpdate(ctx context.Context, d *schema.ResourceData, meta inte
 			input.AccountId = aws.String(accountID)
 		}
 
-		_, err := conn.DisableRegion(ctx, &input)
-
-		if err != nil {
-			return sdkdiag.AppendErrorf(diags, "enabling Account Region (%s): %s", id, err)
+		if requiresStatusChange(status.RegionOptStatus, false) {
+			_, err := conn.DisableRegion(ctx, &input)
+			if err != nil {
+				return sdkdiag.AppendErrorf(diags, "disabling Account Region (%s): %s", id, err)
+			}
 		}
 
 		if _, err := waitRegionDisabled(ctx, conn, accountID, region, timeout); err != nil {
@@ -208,7 +215,6 @@ func waitRegionEnabled(ctx context.Context, conn *account.Client, accountID, reg
 		Target:       enum.Slice(types.RegionOptStatusEnabled),
 		Refresh:      statusRegionOptStatus(ctx, conn, accountID, region),
 		Timeout:      timeout,
-		Delay:        1 * time.Minute,
 		PollInterval: 30 * time.Second,
 	}
 
@@ -227,7 +233,6 @@ func waitRegionDisabled(ctx context.Context, conn *account.Client, accountID, re
 		Target:       enum.Slice(types.RegionOptStatusDisabled),
 		Refresh:      statusRegionOptStatus(ctx, conn, accountID, region),
 		Timeout:      timeout,
-		Delay:        1 * time.Minute,
 		PollInterval: 30 * time.Second,
 	}
 
@@ -239,3 +244,10 @@ func waitRegionDisabled(ctx context.Context, conn *account.Client, accountID, re
 
 	return nil, err
 }
+
+func requiresStatusChange(status types.RegionOptStatus, enable bool) bool {
+	if enable {
+		return status != types.RegionOptStatusEnabled && status != types.RegionOptStatusEnabling
+	}
+	return status != types.RegionOptStatusDisabled && status != types.RegionOptStatusDisabling
+}