Newsletter Insights — advertising rates and audience data for 41K+ newsletters
Browse all →Platform Portability
Uses Substack subdomain (projectsaltbox.substack.com). Migrating would require subscribers to re-subscribe at a new address.
Custom domains let newsletters switch platforms without losing their audience.
Are you a newsletter creator? Get verified insights →
Baltimore salt boxes help neighbors prevent ice. We help you do the same by tracking federal procurement so you can see what they're planning before ICE shows up in your neighborhood.
Data updated 3 months ago
Project Salt Box hasn't published recently
Last post was 3 months ago. Growth, revenue and CPM projections assume ongoing activity, so they're hidden until posting resumes.
We don't have enough growth data for Project Salt Box yet. The average Politics newsletter has 3K subscribers.
Based on 1.2K Politics newsletters tracked
vs 150 newsletters in Politics
28K places you in the top 25% of newsletters in this category.
Posts per Week
4.8
median: 1.1
Publishing Consistency
35/100
median: 66/100
Subscribers
28K
median: 3K
| Public |
Engagement Rate
0.01%
Politics category average
Quality Score
Engagement vs Politics
0.01%category median
Coleman’s Corner
28K subs
Pepperspectives
27K subs
Bruce Mehlman's Age of Disruption
27K subs
Get email alerts when subscribers drop or spike, when new sponsors appear, when pricing changes, or when publishing cadence shifts. Track unlimited newsletters across your watchlist with the Starter plan.
$29/mo·cancel anytime
See what's includedGet the full whitespace list with each brand's category fit, audience overlap, and recommended pitch order. Plus a comparison of Project Salt Box vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including Ground News, Incogni, American Giant + 61 more.
$300·2-3 working days·refunded if we can't deliver
Publishing Frequency
Previously ~5x per week
Inactive — last post 3 months agoUsually publishes Thu, Wed
Politics Pricing
$6/mo median
Your newsletter: Free
Monetization Readiness
Politics newsletters typically start charging at ~6K subscribers
Above the typical threshold
80% of similar-size Politics newsletters have paid tiers
Unlock revenue estimates, CPM benchmarks, and detected sponsors
Start tracking — free